Home / 27,659.15-38,168.49-15,083.90

Finding the Fourth Proportional to 27,659.15, 38,168.49 and 15,083.90

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Solution

The fourth proportional to 27,659.15, 38,168.49 and 15,083.90 is: 20,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,659.15 : 38,168.49 = 15,083.90 : x
  2. Step 2: Convert to fraction form
    27,659.15/38,168.49 = 15,083.90/x
  3. Step 3: Cross multiply
    27,659.15x = 38,168.49 × 15,083.90
  4. Step 4: Simplify right side
    27,659.15x = 575,729,867.44
  5. Step 5: Solve for x
    x = 575,729,867.44/27,659.15
  6. Step 6: Final answer
    x = 20,815.17

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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.