Home / 25,691.80-35,412.24-17,190.86

Finding the Fourth Proportional to 25,691.80, 35,412.24 and 17,190.86

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Solution

The fourth proportional to 25,691.80, 35,412.24 and 17,190.86 is: 23,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.80 : 35,412.24 = 17,190.86 : x
  2. Step 2: Convert to fraction form
    25,691.80/35,412.24 = 17,190.86/x
  3. Step 3: Cross multiply
    25,691.80x = 35,412.24 × 17,190.86
  4. Step 4: Simplify right side
    25,691.80x = 608,766,860.13
  5. Step 5: Solve for x
    x = 608,766,860.13/25,691.80
  6. Step 6: Final answer
    x = 23,694.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.