Home / 20,124.22-30,158.16-17,147.14

Finding the Fourth Proportional to 20,124.22, 30,158.16 and 17,147.14

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Solution

The fourth proportional to 20,124.22, 30,158.16 and 17,147.14 is: 25,696.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124.22 : 30,158.16 = 17,147.14 : x
  2. Step 2: Convert to fraction form
    20,124.22/30,158.16 = 17,147.14/x
  3. Step 3: Cross multiply
    20,124.22x = 30,158.16 × 17,147.14
  4. Step 4: Simplify right side
    20,124.22x = 517,126,191.66
  5. Step 5: Solve for x
    x = 517,126,191.66/20,124.22
  6. Step 6: Final answer
    x = 25,696.71

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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.