Home / 27,612.12-38,089.50-18,672.14

Finding the Fourth Proportional to 27,612.12, 38,089.50 and 18,672.14

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Solution

The fourth proportional to 27,612.12, 38,089.50 and 18,672.14 is: 25,757.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,612.12 : 38,089.50 = 18,672.14 : x
  2. Step 2: Convert to fraction form
    27,612.12/38,089.50 = 18,672.14/x
  3. Step 3: Cross multiply
    27,612.12x = 38,089.50 × 18,672.14
  4. Step 4: Simplify right side
    27,612.12x = 711,212,476.53
  5. Step 5: Solve for x
    x = 711,212,476.53/27,612.12
  6. Step 6: Final answer
    x = 25,757.26

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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.