Home / 30,321.60-45,482.40-27,150.45

Finding the Fourth Proportional to 30,321.60, 45,482.40 and 27,150.45

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Solution

The fourth proportional to 30,321.60, 45,482.40 and 27,150.45 is: 40,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.60 : 45,482.40 = 27,150.45 : x
  2. Step 2: Convert to fraction form
    30,321.60/45,482.40 = 27,150.45/x
  3. Step 3: Cross multiply
    30,321.60x = 45,482.40 × 27,150.45
  4. Step 4: Simplify right side
    30,321.60x = 1,234,867,627.08
  5. Step 5: Solve for x
    x = 1,234,867,627.08/30,321.60
  6. Step 6: Final answer
    x = 40,725.68

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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.