Home / 39,233.57-54,142.68-21,328.58

Finding the Fourth Proportional to 39,233.57, 54,142.68 and 21,328.58

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Solution

The fourth proportional to 39,233.57, 54,142.68 and 21,328.58 is: 29,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,233.57 : 54,142.68 = 21,328.58 : x
  2. Step 2: Convert to fraction form
    39,233.57/54,142.68 = 21,328.58/x
  3. Step 3: Cross multiply
    39,233.57x = 54,142.68 × 21,328.58
  4. Step 4: Simplify right side
    39,233.57x = 1,154,786,481.79
  5. Step 5: Solve for x
    x = 1,154,786,481.79/39,233.57
  6. Step 6: Final answer
    x = 29,433.63

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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.