Home / 20,253.18-30,279.94-17,167.69

Finding the Fourth Proportional to 20,253.18, 30,279.94 and 17,167.69

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Solution

The fourth proportional to 20,253.18, 30,279.94 and 17,167.69 is: 25,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.18 : 30,279.94 = 17,167.69 : x
  2. Step 2: Convert to fraction form
    20,253.18/30,279.94 = 17,167.69/x
  3. Step 3: Cross multiply
    20,253.18x = 30,279.94 × 17,167.69
  4. Step 4: Simplify right side
    20,253.18x = 519,836,504.52
  5. Step 5: Solve for x
    x = 519,836,504.52/20,253.18
  6. Step 6: Final answer
    x = 25,666.91

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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.