Home / 42,340.97-63,517.64-12,761.10

Finding the Fourth Proportional to 42,340.97, 63,517.64 and 12,761.10

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Solution

The fourth proportional to 42,340.97, 63,517.64 and 12,761.10 is: 19,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340.97 : 63,517.64 = 12,761.10 : x
  2. Step 2: Convert to fraction form
    42,340.97/63,517.64 = 12,761.10/x
  3. Step 3: Cross multiply
    42,340.97x = 63,517.64 × 12,761.10
  4. Step 4: Simplify right side
    42,340.97x = 810,554,892.00
  5. Step 5: Solve for x
    x = 810,554,892.00/42,340.97
  6. Step 6: Final answer
    x = 19,143.51

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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.