Home / 27,881.92-38,477.19-15,945.76

Finding the Fourth Proportional to 27,881.92, 38,477.19 and 15,945.76

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Solution

The fourth proportional to 27,881.92, 38,477.19 and 15,945.76 is: 22,005.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.92 : 38,477.19 = 15,945.76 : x
  2. Step 2: Convert to fraction form
    27,881.92/38,477.19 = 15,945.76/x
  3. Step 3: Cross multiply
    27,881.92x = 38,477.19 × 15,945.76
  4. Step 4: Simplify right side
    27,881.92x = 613,548,037.21
  5. Step 5: Solve for x
    x = 613,548,037.21/27,881.92
  6. Step 6: Final answer
    x = 22,005.23

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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.