Home / 20,724.38-31,060.57-8,864.24

Finding the Fourth Proportional to 20,724.38, 31,060.57 and 8,864.24

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Solution

The fourth proportional to 20,724.38, 31,060.57 and 8,864.24 is: 13,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.38 : 31,060.57 = 8,864.24 : x
  2. Step 2: Convert to fraction form
    20,724.38/31,060.57 = 8,864.24/x
  3. Step 3: Cross multiply
    20,724.38x = 31,060.57 × 8,864.24
  4. Step 4: Simplify right side
    20,724.38x = 275,328,202.79
  5. Step 5: Solve for x
    x = 275,328,202.79/20,724.38
  6. Step 6: Final answer
    x = 13,285.23

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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.