Home / 39,948.89-55,129.66-22,043.90

Finding the Fourth Proportional to 39,948.89, 55,129.66 and 22,043.90

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Solution

The fourth proportional to 39,948.89, 55,129.66 and 22,043.90 is: 30,420.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,948.89 : 55,129.66 = 22,043.90 : x
  2. Step 2: Convert to fraction form
    39,948.89/55,129.66 = 22,043.90/x
  3. Step 3: Cross multiply
    39,948.89x = 55,129.66 × 22,043.90
  4. Step 4: Simplify right side
    39,948.89x = 1,215,272,794.79
  5. Step 5: Solve for x
    x = 1,215,272,794.79/39,948.89
  6. Step 6: Final answer
    x = 30,420.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.