Home / 25,805.91-38,534.15-20,481.20

Finding the Fourth Proportional to 25,805.91, 38,534.15 and 20,481.20

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Solution

The fourth proportional to 25,805.91, 38,534.15 and 20,481.20 is: 30,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,805.91 : 38,534.15 = 20,481.20 : x
  2. Step 2: Convert to fraction form
    25,805.91/38,534.15 = 20,481.20/x
  3. Step 3: Cross multiply
    25,805.91x = 38,534.15 × 20,481.20
  4. Step 4: Simplify right side
    25,805.91x = 789,225,632.98
  5. Step 5: Solve for x
    x = 789,225,632.98/25,805.91
  6. Step 6: Final answer
    x = 30,583.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.