Home / 22,542.40-31,108.32-12,470.86

Finding the Fourth Proportional to 22,542.40, 31,108.32 and 12,470.86

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Solution

The fourth proportional to 22,542.40, 31,108.32 and 12,470.86 is: 17,209.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,542.40 : 31,108.32 = 12,470.86 : x
  2. Step 2: Convert to fraction form
    22,542.40/31,108.32 = 12,470.86/x
  3. Step 3: Cross multiply
    22,542.40x = 31,108.32 × 12,470.86
  4. Step 4: Simplify right side
    22,542.40x = 387,947,503.56
  5. Step 5: Solve for x
    x = 387,947,503.56/22,542.40
  6. Step 6: Final answer
    x = 17,209.68

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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.