Home / 31,632.92-43,657.78-18,203.90

Finding the Fourth Proportional to 31,632.92, 43,657.78 and 18,203.90

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Solution

The fourth proportional to 31,632.92, 43,657.78 and 18,203.90 is: 25,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,632.92 : 43,657.78 = 18,203.90 : x
  2. Step 2: Convert to fraction form
    31,632.92/43,657.78 = 18,203.90/x
  3. Step 3: Cross multiply
    31,632.92x = 43,657.78 × 18,203.90
  4. Step 4: Simplify right side
    31,632.92x = 794,741,861.34
  5. Step 5: Solve for x
    x = 794,741,861.34/31,632.92
  6. Step 6: Final answer
    x = 25,123.89

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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.