Home / 31,500.72-43,472.82-18,071.88

Finding the Fourth Proportional to 31,500.72, 43,472.82 and 18,071.88

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Solution

The fourth proportional to 31,500.72, 43,472.82 and 18,071.88 is: 24,940.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500.72 : 43,472.82 = 18,071.88 : x
  2. Step 2: Convert to fraction form
    31,500.72/43,472.82 = 18,071.88/x
  3. Step 3: Cross multiply
    31,500.72x = 43,472.82 × 18,071.88
  4. Step 4: Simplify right side
    31,500.72x = 785,635,586.30
  5. Step 5: Solve for x
    x = 785,635,586.30/31,500.72
  6. Step 6: Final answer
    x = 24,940.24

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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.