Home / 25,729.66-35,507.60-15,119.88

Finding the Fourth Proportional to 25,729.66, 35,507.60 and 15,119.88

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Solution

The fourth proportional to 25,729.66, 35,507.60 and 15,119.88 is: 20,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.66 : 35,507.60 = 15,119.88 : x
  2. Step 2: Convert to fraction form
    25,729.66/35,507.60 = 15,119.88/x
  3. Step 3: Cross multiply
    25,729.66x = 35,507.60 × 15,119.88
  4. Step 4: Simplify right side
    25,729.66x = 536,870,651.09
  5. Step 5: Solve for x
    x = 536,870,651.09/25,729.66
  6. Step 6: Final answer
    x = 20,865.83

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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.