Home / 39,132.75-54,001.72-21,227.16

Finding the Fourth Proportional to 39,132.75, 54,001.72 and 21,227.16

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Solution

The fourth proportional to 39,132.75, 54,001.72 and 21,227.16 is: 29,292.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,132.75 : 54,001.72 = 21,227.16 : x
  2. Step 2: Convert to fraction form
    39,132.75/54,001.72 = 21,227.16/x
  3. Step 3: Cross multiply
    39,132.75x = 54,001.72 × 21,227.16
  4. Step 4: Simplify right side
    39,132.75x = 1,146,303,150.72
  5. Step 5: Solve for x
    x = 1,146,303,150.72/39,132.75
  6. Step 6: Final answer
    x = 29,292.68

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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.