Home / 39,255.49-54,172.04-21,350.11

Finding the Fourth Proportional to 39,255.49, 54,172.04 and 21,350.11

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Solution

The fourth proportional to 39,255.49, 54,172.04 and 21,350.11 is: 29,462.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,255.49 : 54,172.04 = 21,350.11 : x
  2. Step 2: Convert to fraction form
    39,255.49/54,172.04 = 21,350.11/x
  3. Step 3: Cross multiply
    39,255.49x = 54,172.04 × 21,350.11
  4. Step 4: Simplify right side
    39,255.49x = 1,156,579,012.92
  5. Step 5: Solve for x
    x = 1,156,579,012.92/39,255.49
  6. Step 6: Final answer
    x = 29,462.86

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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.