Home / 36,123.18-54,189.38-13,942.90

Finding the Fourth Proportional to 36,123.18, 54,189.38 and 13,942.90

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Solution

The fourth proportional to 36,123.18, 54,189.38 and 13,942.90 is: 20,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,123.18 : 54,189.38 = 13,942.90 : x
  2. Step 2: Convert to fraction form
    36,123.18/54,189.38 = 13,942.90/x
  3. Step 3: Cross multiply
    36,123.18x = 54,189.38 × 13,942.90
  4. Step 4: Simplify right side
    36,123.18x = 755,557,190.87
  5. Step 5: Solve for x
    x = 755,557,190.87/36,123.18
  6. Step 6: Final answer
    x = 20,916.13

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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.