Home / 25,770.28-38,660.28-10,188.04

Finding the Fourth Proportional to 25,770.28, 38,660.28 and 10,188.04

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Solution

The fourth proportional to 25,770.28, 38,660.28 and 10,188.04 is: 15,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,770.28 : 38,660.28 = 10,188.04 : x
  2. Step 2: Convert to fraction form
    25,770.28/38,660.28 = 10,188.04/x
  3. Step 3: Cross multiply
    25,770.28x = 38,660.28 × 10,188.04
  4. Step 4: Simplify right side
    25,770.28x = 393,872,479.05
  5. Step 5: Solve for x
    x = 393,872,479.05/25,770.28
  6. Step 6: Final answer
    x = 15,283.98

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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.