Home / 39,137.68-54,010.20-21,233.44

Finding the Fourth Proportional to 39,137.68, 54,010.20 and 21,233.44

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Solution

The fourth proportional to 39,137.68, 54,010.20 and 21,233.44 is: 29,302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.68 : 54,010.20 = 21,233.44 : x
  2. Step 2: Convert to fraction form
    39,137.68/54,010.20 = 21,233.44/x
  3. Step 3: Cross multiply
    39,137.68x = 54,010.20 × 21,233.44
  4. Step 4: Simplify right side
    39,137.68x = 1,146,822,341.09
  5. Step 5: Solve for x
    x = 1,146,822,341.09/39,137.68
  6. Step 6: Final answer
    x = 29,302.26

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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.