Home / 27,754.92-38,305.44-15,815.52

Finding the Fourth Proportional to 27,754.92, 38,305.44 and 15,815.52

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Solution

The fourth proportional to 27,754.92, 38,305.44 and 15,815.52 is: 21,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,754.92 : 38,305.44 = 15,815.52 : x
  2. Step 2: Convert to fraction form
    27,754.92/38,305.44 = 15,815.52/x
  3. Step 3: Cross multiply
    27,754.92x = 38,305.44 × 15,815.52
  4. Step 4: Simplify right side
    27,754.92x = 605,820,452.43
  5. Step 5: Solve for x
    x = 605,820,452.43/27,754.92
  6. Step 6: Final answer
    x = 21,827.50

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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.