Home / 27,892.27-38,489.95-15,790.87

Finding the Fourth Proportional to 27,892.27, 38,489.95 and 15,790.87

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Solution

The fourth proportional to 27,892.27, 38,489.95 and 15,790.87 is: 21,790.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.27 : 38,489.95 = 15,790.87 : x
  2. Step 2: Convert to fraction form
    27,892.27/38,489.95 = 15,790.87/x
  3. Step 3: Cross multiply
    27,892.27x = 38,489.95 × 15,790.87
  4. Step 4: Simplify right side
    27,892.27x = 607,789,796.76
  5. Step 5: Solve for x
    x = 607,789,796.76/27,892.27
  6. Step 6: Final answer
    x = 21,790.62

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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.