Home / 27,920.97-38,530.28-15,173.85

Finding the Fourth Proportional to 27,920.97, 38,530.28 and 15,173.85

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Solution

The fourth proportional to 27,920.97, 38,530.28 and 15,173.85 is: 20,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.97 : 38,530.28 = 15,173.85 : x
  2. Step 2: Convert to fraction form
    27,920.97/38,530.28 = 15,173.85/x
  3. Step 3: Cross multiply
    27,920.97x = 38,530.28 × 15,173.85
  4. Step 4: Simplify right side
    27,920.97x = 584,652,534.46
  5. Step 5: Solve for x
    x = 584,652,534.46/27,920.97
  6. Step 6: Final answer
    x = 20,939.55

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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.