Home / 25,691.28-35,452.80-15,090

Finding the Fourth Proportional to 25,691.28, 35,452.80 and 15,090

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Solution

The fourth proportional to 25,691.28, 35,452.80 and 15,090 is: 20,823.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.28 : 35,452.80 = 15,090 : x
  2. Step 2: Convert to fraction form
    25,691.28/35,452.80 = 15,090/x
  3. Step 3: Cross multiply
    25,691.28x = 35,452.80 × 15,090
  4. Step 4: Simplify right side
    25,691.28x = 534,982,752.00
  5. Step 5: Solve for x
    x = 534,982,752.00/25,691.28
  6. Step 6: Final answer
    x = 20,823.51

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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.