Home / 27,790.92-38,353.50-18,343.08

Finding the Fourth Proportional to 27,790.92, 38,353.50 and 18,343.08

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Solution

The fourth proportional to 27,790.92, 38,353.50 and 18,343.08 is: 25,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.92 : 38,353.50 = 18,343.08 : x
  2. Step 2: Convert to fraction form
    27,790.92/38,353.50 = 18,343.08/x
  3. Step 3: Cross multiply
    27,790.92x = 38,353.50 × 18,343.08
  4. Step 4: Simplify right side
    27,790.92x = 703,521,318.78
  5. Step 5: Solve for x
    x = 703,521,318.78/27,790.92
  6. Step 6: Final answer
    x = 25,314.79

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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.