Home / 42,542.20-63,814.86-21,741.40

Finding the Fourth Proportional to 42,542.20, 63,814.86 and 21,741.40

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Solution

The fourth proportional to 42,542.20, 63,814.86 and 21,741.40 is: 32,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,542.20 : 63,814.86 = 21,741.40 : x
  2. Step 2: Convert to fraction form
    42,542.20/63,814.86 = 21,741.40/x
  3. Step 3: Cross multiply
    42,542.20x = 63,814.86 × 21,741.40
  4. Step 4: Simplify right side
    42,542.20x = 1,387,424,397.20
  5. Step 5: Solve for x
    x = 1,387,424,397.20/42,542.20
  6. Step 6: Final answer
    x = 32,612.90

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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.