Home / 20,152.20-30,096.47-17,158.71

Finding the Fourth Proportional to 20,152.20, 30,096.47 and 17,158.71

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Solution

The fourth proportional to 20,152.20, 30,096.47 and 17,158.71 is: 25,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.20 : 30,096.47 = 17,158.71 : x
  2. Step 2: Convert to fraction form
    20,152.20/30,096.47 = 17,158.71/x
  3. Step 3: Cross multiply
    20,152.20x = 30,096.47 × 17,158.71
  4. Step 4: Simplify right side
    20,152.20x = 516,416,514.96
  5. Step 5: Solve for x
    x = 516,416,514.96/20,152.20
  6. Step 6: Final answer
    x = 25,625.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.