Home / 30,366.11-45,549.18-8,181.23

Finding the Fourth Proportional to 30,366.11, 45,549.18 and 8,181.23

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Solution

The fourth proportional to 30,366.11, 45,549.18 and 8,181.23 is: 12,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,366.11 : 45,549.18 = 8,181.23 : x
  2. Step 2: Convert to fraction form
    30,366.11/45,549.18 = 8,181.23/x
  3. Step 3: Cross multiply
    30,366.11x = 45,549.18 × 8,181.23
  4. Step 4: Simplify right side
    30,366.11x = 372,648,090.15
  5. Step 5: Solve for x
    x = 372,648,090.15/30,366.11
  6. Step 6: Final answer
    x = 12,271.84

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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.