Home / 21,561,714.30-32,342,571.45-21,278,279.10

Finding the Fourth Proportional to 21,561,714.30, 32,342,571.45 and 21,278,279.10

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Solution

The fourth proportional to 21,561,714.30, 32,342,571.45 and 21,278,279.10 is: 31,917,418.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561,714.30 : 32,342,571.45 = 21,278,279.10 : x
  2. Step 2: Convert to fraction form
    21,561,714.30/32,342,571.45 = 21,278,279.10/x
  3. Step 3: Cross multiply
    21,561,714.30x = 32,342,571.45 × 21,278,279.10
  4. Step 4: Simplify right side
    21,561,714.30x = 688,194,262,124,791.75
  5. Step 5: Solve for x
    x = 688,194,262,124,791.75/21,561,714.30
  6. Step 6: Final answer
    x = 31,917,418.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.