Home / 20,755.44-31,149.60-9,077.04

Finding the Fourth Proportional to 20,755.44, 31,149.60 and 9,077.04

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Solution

The fourth proportional to 20,755.44, 31,149.60 and 9,077.04 is: 13,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.44 : 31,149.60 = 9,077.04 : x
  2. Step 2: Convert to fraction form
    20,755.44/31,149.60 = 9,077.04/x
  3. Step 3: Cross multiply
    20,755.44x = 31,149.60 × 9,077.04
  4. Step 4: Simplify right side
    20,755.44x = 282,746,165.18
  5. Step 5: Solve for x
    x = 282,746,165.18/20,755.44
  6. Step 6: Final answer
    x = 13,622.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.