Home / 20,724.46-31,092.86-6,686.69

Finding the Fourth Proportional to 20,724.46, 31,092.86 and 6,686.69

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Solution

The fourth proportional to 20,724.46, 31,092.86 and 6,686.69 is: 10,032.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.46 : 31,092.86 = 6,686.69 : x
  2. Step 2: Convert to fraction form
    20,724.46/31,092.86 = 6,686.69/x
  3. Step 3: Cross multiply
    20,724.46x = 31,092.86 × 6,686.69
  4. Step 4: Simplify right side
    20,724.46x = 207,908,177.29
  5. Step 5: Solve for x
    x = 207,908,177.29/20,724.46
  6. Step 6: Final answer
    x = 10,032.02

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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.