Home / 22,611.76-31,204.24-12,539.86

Finding the Fourth Proportional to 22,611.76, 31,204.24 and 12,539.86

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Solution

The fourth proportional to 22,611.76, 31,204.24 and 12,539.86 is: 17,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.76 : 31,204.24 = 12,539.86 : x
  2. Step 2: Convert to fraction form
    22,611.76/31,204.24 = 12,539.86/x
  3. Step 3: Cross multiply
    22,611.76x = 31,204.24 × 12,539.86
  4. Step 4: Simplify right side
    22,611.76x = 391,296,867.17
  5. Step 5: Solve for x
    x = 391,296,867.17/22,611.76
  6. Step 6: Final answer
    x = 17,305.02

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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.