Home / 27,906.80-38,510.78-15,159.83

Finding the Fourth Proportional to 27,906.80, 38,510.78 and 15,159.83

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Solution

The fourth proportional to 27,906.80, 38,510.78 and 15,159.83 is: 20,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.80 : 38,510.78 = 15,159.83 : x
  2. Step 2: Convert to fraction form
    27,906.80/38,510.78 = 15,159.83/x
  3. Step 3: Cross multiply
    27,906.80x = 38,510.78 × 15,159.83
  4. Step 4: Simplify right side
    27,906.80x = 583,816,609.61
  5. Step 5: Solve for x
    x = 583,816,609.61/27,906.80
  6. Step 6: Final answer
    x = 20,920.23

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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.