Home / 18,445.05-27,641.12-10,531.17

Finding the Fourth Proportional to 18,445.05, 27,641.12 and 10,531.17

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Solution

The fourth proportional to 18,445.05, 27,641.12 and 10,531.17 is: 15,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.05 : 27,641.12 = 10,531.17 : x
  2. Step 2: Convert to fraction form
    18,445.05/27,641.12 = 10,531.17/x
  3. Step 3: Cross multiply
    18,445.05x = 27,641.12 × 10,531.17
  4. Step 4: Simplify right side
    18,445.05x = 291,093,281.05
  5. Step 5: Solve for x
    x = 291,093,281.05/18,445.05
  6. Step 6: Final answer
    x = 15,781.65

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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.