Home / 28,378.88-42,502.71-27,394.73

Finding the Fourth Proportional to 28,378.88, 42,502.71 and 27,394.73

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Solution

The fourth proportional to 28,378.88, 42,502.71 and 27,394.73 is: 41,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.88 : 42,502.71 = 27,394.73 : x
  2. Step 2: Convert to fraction form
    28,378.88/42,502.71 = 27,394.73/x
  3. Step 3: Cross multiply
    28,378.88x = 42,502.71 × 27,394.73
  4. Step 4: Simplify right side
    28,378.88x = 1,164,350,108.86
  5. Step 5: Solve for x
    x = 1,164,350,108.86/28,378.88
  6. Step 6: Final answer
    x = 41,028.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.