Home / 28,384.19-42,581.30-11,734.90

Finding the Fourth Proportional to 28,384.19, 42,581.30 and 11,734.90

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Solution

The fourth proportional to 28,384.19, 42,581.30 and 11,734.90 is: 17,604.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.19 : 42,581.30 = 11,734.90 : x
  2. Step 2: Convert to fraction form
    28,384.19/42,581.30 = 11,734.90/x
  3. Step 3: Cross multiply
    28,384.19x = 42,581.30 × 11,734.90
  4. Step 4: Simplify right side
    28,384.19x = 499,687,084.46
  5. Step 5: Solve for x
    x = 499,687,084.46/28,384.19
  6. Step 6: Final answer
    x = 17,604.42

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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.