Home / 20,833.27-31,213.46-17,345.70

Finding the Fourth Proportional to 20,833.27, 31,213.46 and 17,345.70

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Solution

The fourth proportional to 20,833.27, 31,213.46 and 17,345.70 is: 25,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833.27 : 31,213.46 = 17,345.70 : x
  2. Step 2: Convert to fraction form
    20,833.27/31,213.46 = 17,345.70/x
  3. Step 3: Cross multiply
    20,833.27x = 31,213.46 × 17,345.70
  4. Step 4: Simplify right side
    20,833.27x = 541,419,356.49
  5. Step 5: Solve for x
    x = 541,419,356.49/20,833.27
  6. Step 6: Final answer
    x = 25,988.21

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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.