Home / 27,812.16-38,380.55-15,065.04

Finding the Fourth Proportional to 27,812.16, 38,380.55 and 15,065.04

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Solution

The fourth proportional to 27,812.16, 38,380.55 and 15,065.04 is: 20,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,812.16 : 38,380.55 = 15,065.04 : x
  2. Step 2: Convert to fraction form
    27,812.16/38,380.55 = 15,065.04/x
  3. Step 3: Cross multiply
    27,812.16x = 38,380.55 × 15,065.04
  4. Step 4: Simplify right side
    27,812.16x = 578,204,520.97
  5. Step 5: Solve for x
    x = 578,204,520.97/27,812.16
  6. Step 6: Final answer
    x = 20,789.63

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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.