Home / 22,739.46-31,380.78-12,531.70

Finding the Fourth Proportional to 22,739.46, 31,380.78 and 12,531.70

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Solution

The fourth proportional to 22,739.46, 31,380.78 and 12,531.70 is: 17,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,739.46 : 31,380.78 = 12,531.70 : x
  2. Step 2: Convert to fraction form
    22,739.46/31,380.78 = 12,531.70/x
  3. Step 3: Cross multiply
    22,739.46x = 31,380.78 × 12,531.70
  4. Step 4: Simplify right side
    22,739.46x = 393,254,520.73
  5. Step 5: Solve for x
    x = 393,254,520.73/22,739.46
  6. Step 6: Final answer
    x = 17,293.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.