Home / 30,181.04-45,273.60-7,994.12

Finding the Fourth Proportional to 30,181.04, 45,273.60 and 7,994.12

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Solution

The fourth proportional to 30,181.04, 45,273.60 and 7,994.12 is: 11,991.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,181.04 : 45,273.60 = 7,994.12 : x
  2. Step 2: Convert to fraction form
    30,181.04/45,273.60 = 7,994.12/x
  3. Step 3: Cross multiply
    30,181.04x = 45,273.60 × 7,994.12
  4. Step 4: Simplify right side
    30,181.04x = 361,922,591.23
  5. Step 5: Solve for x
    x = 361,922,591.23/30,181.04
  6. Step 6: Final answer
    x = 11,991.72

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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.