Home / 42,387.08-58,504.92-28,963.76

Finding the Fourth Proportional to 42,387.08, 58,504.92 and 28,963.76

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Solution

The fourth proportional to 42,387.08, 58,504.92 and 28,963.76 is: 39,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,387.08 : 58,504.92 = 28,963.76 : x
  2. Step 2: Convert to fraction form
    42,387.08/58,504.92 = 28,963.76/x
  3. Step 3: Cross multiply
    42,387.08x = 58,504.92 × 28,963.76
  4. Step 4: Simplify right side
    42,387.08x = 1,694,522,461.70
  5. Step 5: Solve for x
    x = 1,694,522,461.70/42,387.08
  6. Step 6: Final answer
    x = 39,977.33

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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.