Home / 25,758.30-38,615.10-11,515.95

Finding the Fourth Proportional to 25,758.30, 38,615.10 and 11,515.95

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Solution

The fourth proportional to 25,758.30, 38,615.10 and 11,515.95 is: 17,263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,758.30 : 38,615.10 = 11,515.95 : x
  2. Step 2: Convert to fraction form
    25,758.30/38,615.10 = 11,515.95/x
  3. Step 3: Cross multiply
    25,758.30x = 38,615.10 × 11,515.95
  4. Step 4: Simplify right side
    25,758.30x = 444,689,560.85
  5. Step 5: Solve for x
    x = 444,689,560.85/25,758.30
  6. Step 6: Final answer
    x = 17,263.93

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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.