Home / 33,279.12-45,917.28-20,697.12

Finding the Fourth Proportional to 33,279.12, 45,917.28 and 20,697.12

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Solution

The fourth proportional to 33,279.12, 45,917.28 and 20,697.12 is: 28,557.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,279.12 : 45,917.28 = 20,697.12 : x
  2. Step 2: Convert to fraction form
    33,279.12/45,917.28 = 20,697.12/x
  3. Step 3: Cross multiply
    33,279.12x = 45,917.28 × 20,697.12
  4. Step 4: Simplify right side
    33,279.12x = 950,355,454.23
  5. Step 5: Solve for x
    x = 950,355,454.23/33,279.12
  6. Step 6: Final answer
    x = 28,557.11

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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.