Home / 42,276.43-63,418.84-15,629.40

Finding the Fourth Proportional to 42,276.43, 63,418.84 and 15,629.40

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Solution

The fourth proportional to 42,276.43, 63,418.84 and 15,629.40 is: 23,445.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,276.43 : 63,418.84 = 15,629.40 : x
  2. Step 2: Convert to fraction form
    42,276.43/63,418.84 = 15,629.40/x
  3. Step 3: Cross multiply
    42,276.43x = 63,418.84 × 15,629.40
  4. Step 4: Simplify right side
    42,276.43x = 991,198,417.90
  5. Step 5: Solve for x
    x = 991,198,417.90/42,276.43
  6. Step 6: Final answer
    x = 23,445.65

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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.