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Finding the Fourth Proportional to 48,004.20, 71,984.70 and 18,412.20

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Solution

The fourth proportional to 48,004.20, 71,984.70 and 18,412.20 is: 27,610.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,004.20 : 71,984.70 = 18,412.20 : x
  2. Step 2: Convert to fraction form
    48,004.20/71,984.70 = 18,412.20/x
  3. Step 3: Cross multiply
    48,004.20x = 71,984.70 × 18,412.20
  4. Step 4: Simplify right side
    48,004.20x = 1,325,396,693.34
  5. Step 5: Solve for x
    x = 1,325,396,693.34/48,004.20
  6. Step 6: Final answer
    x = 27,610.02

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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.