Home / 27,689.87-38,212.44-15,753.29

Finding the Fourth Proportional to 27,689.87, 38,212.44 and 15,753.29

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Solution

The fourth proportional to 27,689.87, 38,212.44 and 15,753.29 is: 21,739.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,689.87 : 38,212.44 = 15,753.29 : x
  2. Step 2: Convert to fraction form
    27,689.87/38,212.44 = 15,753.29/x
  3. Step 3: Cross multiply
    27,689.87x = 38,212.44 × 15,753.29
  4. Step 4: Simplify right side
    27,689.87x = 601,971,648.93
  5. Step 5: Solve for x
    x = 601,971,648.93/27,689.87
  6. Step 6: Final answer
    x = 21,739.78

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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.