Home / 39,828.20-54,962.92-21,923.13

Finding the Fourth Proportional to 39,828.20, 54,962.92 and 21,923.13

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Solution

The fourth proportional to 39,828.20, 54,962.92 and 21,923.13 is: 30,253.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,828.20 : 54,962.92 = 21,923.13 : x
  2. Step 2: Convert to fraction form
    39,828.20/54,962.92 = 21,923.13/x
  3. Step 3: Cross multiply
    39,828.20x = 54,962.92 × 21,923.13
  4. Step 4: Simplify right side
    39,828.20x = 1,204,959,102.93
  5. Step 5: Solve for x
    x = 1,204,959,102.93/39,828.20
  6. Step 6: Final answer
    x = 30,253.92

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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.