Home / 42,538.43-63,802.79-11,376.11

Finding the Fourth Proportional to 42,538.43, 63,802.79 and 11,376.11

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Solution

The fourth proportional to 42,538.43, 63,802.79 and 11,376.11 is: 17,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,538.43 : 63,802.79 = 11,376.11 : x
  2. Step 2: Convert to fraction form
    42,538.43/63,802.79 = 11,376.11/x
  3. Step 3: Cross multiply
    42,538.43x = 63,802.79 × 11,376.11
  4. Step 4: Simplify right side
    42,538.43x = 725,827,500.47
  5. Step 5: Solve for x
    x = 725,827,500.47/42,538.43
  6. Step 6: Final answer
    x = 17,062.87

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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.