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Finding the Fourth Proportional to 24,000.40, 36,000.60 and 21,181.60

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Solution

The fourth proportional to 24,000.40, 36,000.60 and 21,181.60 is: 31,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,000.40 : 36,000.60 = 21,181.60 : x
  2. Step 2: Convert to fraction form
    24,000.40/36,000.60 = 21,181.60/x
  3. Step 3: Cross multiply
    24,000.40x = 36,000.60 × 21,181.60
  4. Step 4: Simplify right side
    24,000.40x = 762,550,308.96
  5. Step 5: Solve for x
    x = 762,550,308.96/24,000.40
  6. Step 6: Final answer
    x = 31,772.40

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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.