Home / 22,523.20-31,080.34-12,450.64

Finding the Fourth Proportional to 22,523.20, 31,080.34 and 12,450.64

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Solution

The fourth proportional to 22,523.20, 31,080.34 and 12,450.64 is: 17,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,523.20 : 31,080.34 = 12,450.64 : x
  2. Step 2: Convert to fraction form
    22,523.20/31,080.34 = 12,450.64/x
  3. Step 3: Cross multiply
    22,523.20x = 31,080.34 × 12,450.64
  4. Step 4: Simplify right side
    22,523.20x = 386,970,124.42
  5. Step 5: Solve for x
    x = 386,970,124.42/22,523.20
  6. Step 6: Final answer
    x = 17,180.96

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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.