Home / 22,630.71-31,229.26-12,558.36

Finding the Fourth Proportional to 22,630.71, 31,229.26 and 12,558.36

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Solution

The fourth proportional to 22,630.71, 31,229.26 and 12,558.36 is: 17,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,630.71 : 31,229.26 = 12,558.36 : x
  2. Step 2: Convert to fraction form
    22,630.71/31,229.26 = 12,558.36/x
  3. Step 3: Cross multiply
    22,630.71x = 31,229.26 × 12,558.36
  4. Step 4: Simplify right side
    22,630.71x = 392,188,289.61
  5. Step 5: Solve for x
    x = 392,188,289.61/22,630.71
  6. Step 6: Final answer
    x = 17,329.92

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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.