Home / 34,387.20-51,542.40-17,740.80

Finding the Fourth Proportional to 34,387.20, 51,542.40 and 17,740.80

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Solution

The fourth proportional to 34,387.20, 51,542.40 and 17,740.80 is: 26,591.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,387.20 : 51,542.40 = 17,740.80 : x
  2. Step 2: Convert to fraction form
    34,387.20/51,542.40 = 17,740.80/x
  3. Step 3: Cross multiply
    34,387.20x = 51,542.40 × 17,740.80
  4. Step 4: Simplify right side
    34,387.20x = 914,403,409.92
  5. Step 5: Solve for x
    x = 914,403,409.92/34,387.20
  6. Step 6: Final answer
    x = 26,591.39

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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.