Home / 27,806.80-38,373.46-15,231.56

Finding the Fourth Proportional to 27,806.80, 38,373.46 and 15,231.56

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Solution

The fourth proportional to 27,806.80, 38,373.46 and 15,231.56 is: 21,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,806.80 : 38,373.46 = 15,231.56 : x
  2. Step 2: Convert to fraction form
    27,806.80/38,373.46 = 15,231.56/x
  3. Step 3: Cross multiply
    27,806.80x = 38,373.46 × 15,231.56
  4. Step 4: Simplify right side
    27,806.80x = 584,487,658.40
  5. Step 5: Solve for x
    x = 584,487,658.40/27,806.80
  6. Step 6: Final answer
    x = 21,019.59

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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.