Home / 21,158.88-31,737.06-9,468.96

Finding the Fourth Proportional to 21,158.88, 31,737.06 and 9,468.96

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Solution

The fourth proportional to 21,158.88, 31,737.06 and 9,468.96 is: 14,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,158.88 : 31,737.06 = 9,468.96 : x
  2. Step 2: Convert to fraction form
    21,158.88/31,737.06 = 9,468.96/x
  3. Step 3: Cross multiply
    21,158.88x = 31,737.06 × 9,468.96
  4. Step 4: Simplify right side
    21,158.88x = 300,516,951.66
  5. Step 5: Solve for x
    x = 300,516,951.66/21,158.88
  6. Step 6: Final answer
    x = 14,202.88

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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.