Home / 25,409.48-35,082.20-15,863.90

Finding the Fourth Proportional to 25,409.48, 35,082.20 and 15,863.90

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Solution

The fourth proportional to 25,409.48, 35,082.20 and 15,863.90 is: 21,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,409.48 : 35,082.20 = 15,863.90 : x
  2. Step 2: Convert to fraction form
    25,409.48/35,082.20 = 15,863.90/x
  3. Step 3: Cross multiply
    25,409.48x = 35,082.20 × 15,863.90
  4. Step 4: Simplify right side
    25,409.48x = 556,540,639.95
  5. Step 5: Solve for x
    x = 556,540,639.95/25,409.48
  6. Step 6: Final answer
    x = 21,902.87

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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.