Home / 28,479.44-39,301.92-15,732.95

Finding the Fourth Proportional to 28,479.44, 39,301.92 and 15,732.95

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Solution

The fourth proportional to 28,479.44, 39,301.92 and 15,732.95 is: 21,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.44 : 39,301.92 = 15,732.95 : x
  2. Step 2: Convert to fraction form
    28,479.44/39,301.92 = 15,732.95/x
  3. Step 3: Cross multiply
    28,479.44x = 39,301.92 × 15,732.95
  4. Step 4: Simplify right side
    28,479.44x = 618,334,945.75
  5. Step 5: Solve for x
    x = 618,334,945.75/28,479.44
  6. Step 6: Final answer
    x = 21,711.63

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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.