Home / 19,689.57-29,534.34-5,838.57

Finding the Fourth Proportional to 19,689.57, 29,534.34 and 5,838.57

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Solution

The fourth proportional to 19,689.57, 29,534.34 and 5,838.57 is: 8,757.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.57 : 29,534.34 = 5,838.57 : x
  2. Step 2: Convert to fraction form
    19,689.57/29,534.34 = 5,838.57/x
  3. Step 3: Cross multiply
    19,689.57x = 29,534.34 × 5,838.57
  4. Step 4: Simplify right side
    19,689.57x = 172,438,311.49
  5. Step 5: Solve for x
    x = 172,438,311.49/19,689.57
  6. Step 6: Final answer
    x = 8,757.85

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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.