Home / 20,167.75-30,251.51-5,174.81

Finding the Fourth Proportional to 20,167.75, 30,251.51 and 5,174.81

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Solution

The fourth proportional to 20,167.75, 30,251.51 and 5,174.81 is: 7,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.75 : 30,251.51 = 5,174.81 : x
  2. Step 2: Convert to fraction form
    20,167.75/30,251.51 = 5,174.81/x
  3. Step 3: Cross multiply
    20,167.75x = 30,251.51 × 5,174.81
  4. Step 4: Simplify right side
    20,167.75x = 156,545,816.46
  5. Step 5: Solve for x
    x = 156,545,816.46/20,167.75
  6. Step 6: Final answer
    x = 7,762.19

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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.