Home / 22,591.80-31,176.25-12,520.19

Finding the Fourth Proportional to 22,591.80, 31,176.25 and 12,520.19

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Solution

The fourth proportional to 22,591.80, 31,176.25 and 12,520.19 is: 17,277.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,591.80 : 31,176.25 = 12,520.19 : x
  2. Step 2: Convert to fraction form
    22,591.80/31,176.25 = 12,520.19/x
  3. Step 3: Cross multiply
    22,591.80x = 31,176.25 × 12,520.19
  4. Step 4: Simplify right side
    22,591.80x = 390,332,620.13
  5. Step 5: Solve for x
    x = 390,332,620.13/22,591.80
  6. Step 6: Final answer
    x = 17,277.62

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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.