Home / 30,144.14-45,206.96-20,843.92

Finding the Fourth Proportional to 30,144.14, 45,206.96 and 20,843.92

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Solution

The fourth proportional to 30,144.14, 45,206.96 and 20,843.92 is: 31,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.14 : 45,206.96 = 20,843.92 : x
  2. Step 2: Convert to fraction form
    30,144.14/45,206.96 = 20,843.92/x
  3. Step 3: Cross multiply
    30,144.14x = 45,206.96 × 20,843.92
  4. Step 4: Simplify right side
    30,144.14x = 942,290,257.68
  5. Step 5: Solve for x
    x = 942,290,257.68/30,144.14
  6. Step 6: Final answer
    x = 31,259.48

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Half scale
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Double scale
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Similar ratio
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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.