Home / 25,418.40-38,132.69-8,779.04

Finding the Fourth Proportional to 25,418.40, 38,132.69 and 8,779.04

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Solution

The fourth proportional to 25,418.40, 38,132.69 and 8,779.04 is: 13,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.40 : 38,132.69 = 8,779.04 : x
  2. Step 2: Convert to fraction form
    25,418.40/38,132.69 = 8,779.04/x
  3. Step 3: Cross multiply
    25,418.40x = 38,132.69 × 8,779.04
  4. Step 4: Simplify right side
    25,418.40x = 334,768,176.26
  5. Step 5: Solve for x
    x = 334,768,176.26/25,418.40
  6. Step 6: Final answer
    x = 13,170.31

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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.