Home / 28,175.18-38,879.12-16,842.47

Finding the Fourth Proportional to 28,175.18, 38,879.12 and 16,842.47

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Solution

The fourth proportional to 28,175.18, 38,879.12 and 16,842.47 is: 23,241.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.18 : 38,879.12 = 16,842.47 : x
  2. Step 2: Convert to fraction form
    28,175.18/38,879.12 = 16,842.47/x
  3. Step 3: Cross multiply
    28,175.18x = 38,879.12 × 16,842.47
  4. Step 4: Simplify right side
    28,175.18x = 654,820,259.94
  5. Step 5: Solve for x
    x = 654,820,259.94/28,175.18
  6. Step 6: Final answer
    x = 23,241.04

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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.