Home / 21,474.34-29,620.95-15,514.76

Finding the Fourth Proportional to 21,474.34, 29,620.95 and 15,514.76

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Solution

The fourth proportional to 21,474.34, 29,620.95 and 15,514.76 is: 21,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,474.34 : 29,620.95 = 15,514.76 : x
  2. Step 2: Convert to fraction form
    21,474.34/29,620.95 = 15,514.76/x
  3. Step 3: Cross multiply
    21,474.34x = 29,620.95 × 15,514.76
  4. Step 4: Simplify right side
    21,474.34x = 459,561,930.22
  5. Step 5: Solve for x
    x = 459,561,930.22/21,474.34
  6. Step 6: Final answer
    x = 21,400.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.