Home / 22,539.20-31,103.91-12,467.61

Finding the Fourth Proportional to 22,539.20, 31,103.91 and 12,467.61

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Solution

The fourth proportional to 22,539.20, 31,103.91 and 12,467.61 is: 17,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,539.20 : 31,103.91 = 12,467.61 : x
  2. Step 2: Convert to fraction form
    22,539.20/31,103.91 = 12,467.61/x
  3. Step 3: Cross multiply
    22,539.20x = 31,103.91 × 12,467.61
  4. Step 4: Simplify right side
    22,539.20x = 387,791,419.36
  5. Step 5: Solve for x
    x = 387,791,419.36/22,539.20
  6. Step 6: Final answer
    x = 17,205.20

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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.