Home / 25,678.82-38,517.99-13,838.17

Finding the Fourth Proportional to 25,678.82, 38,517.99 and 13,838.17

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Solution

The fourth proportional to 25,678.82, 38,517.99 and 13,838.17 is: 20,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.82 : 38,517.99 = 13,838.17 : x
  2. Step 2: Convert to fraction form
    25,678.82/38,517.99 = 13,838.17/x
  3. Step 3: Cross multiply
    25,678.82x = 38,517.99 × 13,838.17
  4. Step 4: Simplify right side
    25,678.82x = 533,018,493.68
  5. Step 5: Solve for x
    x = 533,018,493.68/25,678.82
  6. Step 6: Final answer
    x = 20,757.13

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1.5x scale

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.