Home / 22,630.53-31,229.67-12,558.90

Finding the Fourth Proportional to 22,630.53, 31,229.67 and 12,558.90

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Solution

The fourth proportional to 22,630.53, 31,229.67 and 12,558.90 is: 17,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,630.53 : 31,229.67 = 12,558.90 : x
  2. Step 2: Convert to fraction form
    22,630.53/31,229.67 = 12,558.90/x
  3. Step 3: Cross multiply
    22,630.53x = 31,229.67 × 12,558.90
  4. Step 4: Simplify right side
    22,630.53x = 392,210,302.56
  5. Step 5: Solve for x
    x = 392,210,302.56/22,630.53
  6. Step 6: Final answer
    x = 17,331.03

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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.