Home / 25,138.20-34,690.50-13,960.20

Finding the Fourth Proportional to 25,138.20, 34,690.50 and 13,960.20

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Solution

The fourth proportional to 25,138.20, 34,690.50 and 13,960.20 is: 19,264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.20 : 34,690.50 = 13,960.20 : x
  2. Step 2: Convert to fraction form
    25,138.20/34,690.50 = 13,960.20/x
  3. Step 3: Cross multiply
    25,138.20x = 34,690.50 × 13,960.20
  4. Step 4: Simplify right side
    25,138.20x = 484,286,318.10
  5. Step 5: Solve for x
    x = 484,286,318.10/25,138.20
  6. Step 6: Final answer
    x = 19,264.96

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1.5x scale

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.