Home / 25,460.28-38,149.38-13,779

Finding the Fourth Proportional to 25,460.28, 38,149.38 and 13,779

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Solution

The fourth proportional to 25,460.28, 38,149.38 and 13,779 is: 20,646.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,460.28 : 38,149.38 = 13,779 : x
  2. Step 2: Convert to fraction form
    25,460.28/38,149.38 = 13,779/x
  3. Step 3: Cross multiply
    25,460.28x = 38,149.38 × 13,779
  4. Step 4: Simplify right side
    25,460.28x = 525,660,307.02
  5. Step 5: Solve for x
    x = 525,660,307.02/25,460.28
  6. Step 6: Final answer
    x = 20,646.29

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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.