Home / 30,932.64-42,689.70-17,508.18

Finding the Fourth Proportional to 30,932.64, 42,689.70 and 17,508.18

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Solution

The fourth proportional to 30,932.64, 42,689.70 and 17,508.18 is: 24,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.64 : 42,689.70 = 17,508.18 : x
  2. Step 2: Convert to fraction form
    30,932.64/42,689.70 = 17,508.18/x
  3. Step 3: Cross multiply
    30,932.64x = 42,689.70 × 17,508.18
  4. Step 4: Simplify right side
    30,932.64x = 747,418,951.75
  5. Step 5: Solve for x
    x = 747,418,951.75/30,932.64
  6. Step 6: Final answer
    x = 24,162.79

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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.