Home / 27,855.60-38,440.61-15,108.73

Finding the Fourth Proportional to 27,855.60, 38,440.61 and 15,108.73

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Solution

The fourth proportional to 27,855.60, 38,440.61 and 15,108.73 is: 20,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.60 : 38,440.61 = 15,108.73 : x
  2. Step 2: Convert to fraction form
    27,855.60/38,440.61 = 15,108.73/x
  3. Step 3: Cross multiply
    27,855.60x = 38,440.61 × 15,108.73
  4. Step 4: Simplify right side
    27,855.60x = 580,788,797.53
  5. Step 5: Solve for x
    x = 580,788,797.53/27,855.60
  6. Step 6: Final answer
    x = 20,849.98

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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.