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Finding the Fourth Proportional to 42,642.40, 63,963.60 and 22,930.24

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Solution

The fourth proportional to 42,642.40, 63,963.60 and 22,930.24 is: 34,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,642.40 : 63,963.60 = 22,930.24 : x
  2. Step 2: Convert to fraction form
    42,642.40/63,963.60 = 22,930.24/x
  3. Step 3: Cross multiply
    42,642.40x = 63,963.60 × 22,930.24
  4. Step 4: Simplify right side
    42,642.40x = 1,466,700,699.26
  5. Step 5: Solve for x
    x = 1,466,700,699.26/42,642.40
  6. Step 6: Final answer
    x = 34,395.36

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1.5x scale

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.