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Finding the Fourth Proportional to 38,152.50, 57,244.50 and 20,601.66

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Solution

The fourth proportional to 38,152.50, 57,244.50 and 20,601.66 is: 30,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,152.50 : 57,244.50 = 20,601.66 : x
  2. Step 2: Convert to fraction form
    38,152.50/57,244.50 = 20,601.66/x
  3. Step 3: Cross multiply
    38,152.50x = 57,244.50 × 20,601.66
  4. Step 4: Simplify right side
    38,152.50x = 1,179,331,725.87
  5. Step 5: Solve for x
    x = 1,179,331,725.87/38,152.50
  6. Step 6: Final answer
    x = 30,910.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.