Home / 22,631.28-31,231.20-12,559.44

Finding the Fourth Proportional to 22,631.28, 31,231.20 and 12,559.44

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Solution

The fourth proportional to 22,631.28, 31,231.20 and 12,559.44 is: 17,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,631.28 : 31,231.20 = 12,559.44 : x
  2. Step 2: Convert to fraction form
    22,631.28/31,231.20 = 12,559.44/x
  3. Step 3: Cross multiply
    22,631.28x = 31,231.20 × 12,559.44
  4. Step 4: Simplify right side
    22,631.28x = 392,246,382.53
  5. Step 5: Solve for x
    x = 392,246,382.53/22,631.28
  6. Step 6: Final answer
    x = 17,332.05

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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.