Home / 25,159.20-37,760.40-11,140.80

Finding the Fourth Proportional to 25,159.20, 37,760.40 and 11,140.80

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Solution

The fourth proportional to 25,159.20, 37,760.40 and 11,140.80 is: 16,720.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,159.20 : 37,760.40 = 11,140.80 : x
  2. Step 2: Convert to fraction form
    25,159.20/37,760.40 = 11,140.80/x
  3. Step 3: Cross multiply
    25,159.20x = 37,760.40 × 11,140.80
  4. Step 4: Simplify right side
    25,159.20x = 420,681,064.32
  5. Step 5: Solve for x
    x = 420,681,064.32/25,159.20
  6. Step 6: Final answer
    x = 16,720.76

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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.