Home / 28,540.26-39,385.68-15,965

Finding the Fourth Proportional to 28,540.26, 39,385.68 and 15,965

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Solution

The fourth proportional to 28,540.26, 39,385.68 and 15,965 is: 22,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.26 : 39,385.68 = 15,965 : x
  2. Step 2: Convert to fraction form
    28,540.26/39,385.68 = 15,965/x
  3. Step 3: Cross multiply
    28,540.26x = 39,385.68 × 15,965
  4. Step 4: Simplify right side
    28,540.26x = 628,792,381.20
  5. Step 5: Solve for x
    x = 628,792,381.20/28,540.26
  6. Step 6: Final answer
    x = 22,031.77

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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.