Home / 27,791.92-38,349.29-15,854.56

Finding the Fourth Proportional to 27,791.92, 38,349.29 and 15,854.56

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Solution

The fourth proportional to 27,791.92, 38,349.29 and 15,854.56 is: 21,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,791.92 : 38,349.29 = 15,854.56 : x
  2. Step 2: Convert to fraction form
    27,791.92/38,349.29 = 15,854.56/x
  3. Step 3: Cross multiply
    27,791.92x = 38,349.29 × 15,854.56
  4. Step 4: Simplify right side
    27,791.92x = 608,011,039.99
  5. Step 5: Solve for x
    x = 608,011,039.99/27,791.92
  6. Step 6: Final answer
    x = 21,877.26

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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.