Home / 28,781.26-39,720.98-16,843.88

Finding the Fourth Proportional to 28,781.26, 39,720.98 and 16,843.88

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Solution

The fourth proportional to 28,781.26, 39,720.98 and 16,843.88 is: 23,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.26 : 39,720.98 = 16,843.88 : x
  2. Step 2: Convert to fraction form
    28,781.26/39,720.98 = 16,843.88/x
  3. Step 3: Cross multiply
    28,781.26x = 39,720.98 × 16,843.88
  4. Step 4: Simplify right side
    28,781.26x = 669,055,420.60
  5. Step 5: Solve for x
    x = 669,055,420.60/28,781.26
  6. Step 6: Final answer
    x = 23,246.22

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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.