Home / 38,712.22-53,419.66-21,714.10

Finding the Fourth Proportional to 38,712.22, 53,419.66 and 21,714.10

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Solution

The fourth proportional to 38,712.22, 53,419.66 and 21,714.10 is: 29,963.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,712.22 : 53,419.66 = 21,714.10 : x
  2. Step 2: Convert to fraction form
    38,712.22/53,419.66 = 21,714.10/x
  3. Step 3: Cross multiply
    38,712.22x = 53,419.66 × 21,714.10
  4. Step 4: Simplify right side
    38,712.22x = 1,159,959,839.21
  5. Step 5: Solve for x
    x = 1,159,959,839.21/38,712.22
  6. Step 6: Final answer
    x = 29,963.66

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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.