Home / 25,357.28-38,040.36-8,719.04

Finding the Fourth Proportional to 25,357.28, 38,040.36 and 8,719.04

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Solution

The fourth proportional to 25,357.28, 38,040.36 and 8,719.04 is: 13,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,357.28 : 38,040.36 = 8,719.04 : x
  2. Step 2: Convert to fraction form
    25,357.28/38,040.36 = 8,719.04/x
  3. Step 3: Cross multiply
    25,357.28x = 38,040.36 × 8,719.04
  4. Step 4: Simplify right side
    25,357.28x = 331,675,420.45
  5. Step 5: Solve for x
    x = 331,675,420.45/25,357.28
  6. Step 6: Final answer
    x = 13,080.09

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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.