Home / 25,011.30-34,515.20-13,680.52

Finding the Fourth Proportional to 25,011.30, 34,515.20 and 13,680.52

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Solution

The fourth proportional to 25,011.30, 34,515.20 and 13,680.52 is: 18,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,011.30 : 34,515.20 = 13,680.52 : x
  2. Step 2: Convert to fraction form
    25,011.30/34,515.20 = 13,680.52/x
  3. Step 3: Cross multiply
    25,011.30x = 34,515.20 × 13,680.52
  4. Step 4: Simplify right side
    25,011.30x = 472,185,883.90
  5. Step 5: Solve for x
    x = 472,185,883.90/25,011.30
  6. Step 6: Final answer
    x = 18,878.90

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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.