Home / 20,174.68-30,234.02-15,240.28

Finding the Fourth Proportional to 20,174.68, 30,234.02 and 15,240.28

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Solution

The fourth proportional to 20,174.68, 30,234.02 and 15,240.28 is: 22,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.68 : 30,234.02 = 15,240.28 : x
  2. Step 2: Convert to fraction form
    20,174.68/30,234.02 = 15,240.28/x
  3. Step 3: Cross multiply
    20,174.68x = 30,234.02 × 15,240.28
  4. Step 4: Simplify right side
    20,174.68x = 460,774,930.33
  5. Step 5: Solve for x
    x = 460,774,930.33/20,174.68
  6. Step 6: Final answer
    x = 22,839.27

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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.