Home / 30,761.15-42,449.18-17,335.13

Finding the Fourth Proportional to 30,761.15, 42,449.18 and 17,335.13

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Solution

The fourth proportional to 30,761.15, 42,449.18 and 17,335.13 is: 23,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,761.15 : 42,449.18 = 17,335.13 : x
  2. Step 2: Convert to fraction form
    30,761.15/42,449.18 = 17,335.13/x
  3. Step 3: Cross multiply
    30,761.15x = 42,449.18 × 17,335.13
  4. Step 4: Simplify right side
    30,761.15x = 735,861,754.77
  5. Step 5: Solve for x
    x = 735,861,754.77/30,761.15
  6. Step 6: Final answer
    x = 23,921.79

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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.