Home / 28,711.24-39,616.70-15,964.06

Finding the Fourth Proportional to 28,711.24, 39,616.70 and 15,964.06

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Solution

The fourth proportional to 28,711.24, 39,616.70 and 15,964.06 is: 22,027.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.24 : 39,616.70 = 15,964.06 : x
  2. Step 2: Convert to fraction form
    28,711.24/39,616.70 = 15,964.06/x
  3. Step 3: Cross multiply
    28,711.24x = 39,616.70 × 15,964.06
  4. Step 4: Simplify right side
    28,711.24x = 632,443,375.80
  5. Step 5: Solve for x
    x = 632,443,375.80/28,711.24
  6. Step 6: Final answer
    x = 22,027.73

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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.