Home / 39,229.65-54,135.75-21,324.20

Finding the Fourth Proportional to 39,229.65, 54,135.75 and 21,324.20

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Solution

The fourth proportional to 39,229.65, 54,135.75 and 21,324.20 is: 29,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.65 : 54,135.75 = 21,324.20 : x
  2. Step 2: Convert to fraction form
    39,229.65/54,135.75 = 21,324.20/x
  3. Step 3: Cross multiply
    39,229.65x = 54,135.75 × 21,324.20
  4. Step 4: Simplify right side
    39,229.65x = 1,154,401,289.47
  5. Step 5: Solve for x
    x = 1,154,401,289.47/39,229.65
  6. Step 6: Final answer
    x = 29,426.75

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1.5x scale

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.