Home / 25,678.82-38,517.98-13,838.18

Finding the Fourth Proportional to 25,678.82, 38,517.98 and 13,838.18

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Solution

The fourth proportional to 25,678.82, 38,517.98 and 13,838.18 is: 20,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.82 : 38,517.98 = 13,838.18 : x
  2. Step 2: Convert to fraction form
    25,678.82/38,517.98 = 13,838.18/x
  3. Step 3: Cross multiply
    25,678.82x = 38,517.98 × 13,838.18
  4. Step 4: Simplify right side
    25,678.82x = 533,018,740.48
  5. Step 5: Solve for x
    x = 533,018,740.48/25,678.82
  6. Step 6: Final answer
    x = 20,757.14

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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.