Home / 28,999.88-40,010.20-20,044.16

Finding the Fourth Proportional to 28,999.88, 40,010.20 and 20,044.16

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Solution

The fourth proportional to 28,999.88, 40,010.20 and 20,044.16 is: 27,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.88 : 40,010.20 = 20,044.16 : x
  2. Step 2: Convert to fraction form
    28,999.88/40,010.20 = 20,044.16/x
  3. Step 3: Cross multiply
    28,999.88x = 40,010.20 × 20,044.16
  4. Step 4: Simplify right side
    28,999.88x = 801,970,850.43
  5. Step 5: Solve for x
    x = 801,970,850.43/28,999.88
  6. Step 6: Final answer
    x = 27,654.28

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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.