Home / 25,631.26-35,371.17-15,020.90

Finding the Fourth Proportional to 25,631.26, 35,371.17 and 15,020.90

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Solution

The fourth proportional to 25,631.26, 35,371.17 and 15,020.90 is: 20,728.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.26 : 35,371.17 = 15,020.90 : x
  2. Step 2: Convert to fraction form
    25,631.26/35,371.17 = 15,020.90/x
  3. Step 3: Cross multiply
    25,631.26x = 35,371.17 × 15,020.90
  4. Step 4: Simplify right side
    25,631.26x = 531,306,807.45
  5. Step 5: Solve for x
    x = 531,306,807.45/25,631.26
  6. Step 6: Final answer
    x = 20,728.86

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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.