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Finding the Fourth Proportional to 36,661.48, 54,992.22 and 13,280.20

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Solution

The fourth proportional to 36,661.48, 54,992.22 and 13,280.20 is: 19,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,661.48 : 54,992.22 = 13,280.20 : x
  2. Step 2: Convert to fraction form
    36,661.48/54,992.22 = 13,280.20/x
  3. Step 3: Cross multiply
    36,661.48x = 54,992.22 × 13,280.20
  4. Step 4: Simplify right side
    36,661.48x = 730,307,680.04
  5. Step 5: Solve for x
    x = 730,307,680.04/36,661.48
  6. Step 6: Final answer
    x = 19,920.30

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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.