Home / 25,779.60-38,658.48-9,143.82

Finding the Fourth Proportional to 25,779.60, 38,658.48 and 9,143.82

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Solution

The fourth proportional to 25,779.60, 38,658.48 and 9,143.82 is: 13,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,779.60 : 38,658.48 = 9,143.82 : x
  2. Step 2: Convert to fraction form
    25,779.60/38,658.48 = 9,143.82/x
  3. Step 3: Cross multiply
    25,779.60x = 38,658.48 × 9,143.82
  4. Step 4: Simplify right side
    25,779.60x = 353,486,182.59
  5. Step 5: Solve for x
    x = 353,486,182.59/25,779.60
  6. Step 6: Final answer
    x = 13,711.86

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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.