Home / 38,711.22-53,418.28-21,713.10

Finding the Fourth Proportional to 38,711.22, 53,418.28 and 21,713.10

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Solution

The fourth proportional to 38,711.22, 53,418.28 and 21,713.10 is: 29,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,711.22 : 53,418.28 = 21,713.10 : x
  2. Step 2: Convert to fraction form
    38,711.22/53,418.28 = 21,713.10/x
  3. Step 3: Cross multiply
    38,711.22x = 53,418.28 × 21,713.10
  4. Step 4: Simplify right side
    38,711.22x = 1,159,876,455.47
  5. Step 5: Solve for x
    x = 1,159,876,455.47/38,711.22
  6. Step 6: Final answer
    x = 29,962.28

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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.