Home / 27,694.74-38,218.86-15,119.76

Finding the Fourth Proportional to 27,694.74, 38,218.86 and 15,119.76

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Solution

The fourth proportional to 27,694.74, 38,218.86 and 15,119.76 is: 20,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.74 : 38,218.86 = 15,119.76 : x
  2. Step 2: Convert to fraction form
    27,694.74/38,218.86 = 15,119.76/x
  3. Step 3: Cross multiply
    27,694.74x = 38,218.86 × 15,119.76
  4. Step 4: Simplify right side
    27,694.74x = 577,859,990.67
  5. Step 5: Solve for x
    x = 577,859,990.67/27,694.74
  6. Step 6: Final answer
    x = 20,865.33

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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.