Home / 36,349.76-54,513.12-11,720

Finding the Fourth Proportional to 36,349.76, 54,513.12 and 11,720

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Solution

The fourth proportional to 36,349.76, 54,513.12 and 11,720 is: 17,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,349.76 : 54,513.12 = 11,720 : x
  2. Step 2: Convert to fraction form
    36,349.76/54,513.12 = 11,720/x
  3. Step 3: Cross multiply
    36,349.76x = 54,513.12 × 11,720
  4. Step 4: Simplify right side
    36,349.76x = 638,893,766.40
  5. Step 5: Solve for x
    x = 638,893,766.40/36,349.76
  6. Step 6: Final answer
    x = 17,576.29

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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.