Home / 39,822.44-54,958.65-21,921.08

Finding the Fourth Proportional to 39,822.44, 54,958.65 and 21,921.08

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Solution

The fourth proportional to 39,822.44, 54,958.65 and 21,921.08 is: 30,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,822.44 : 54,958.65 = 21,921.08 : x
  2. Step 2: Convert to fraction form
    39,822.44/54,958.65 = 21,921.08/x
  3. Step 3: Cross multiply
    39,822.44x = 54,958.65 × 21,921.08
  4. Step 4: Simplify right side
    39,822.44x = 1,204,752,963.34
  5. Step 5: Solve for x
    x = 1,204,752,963.34/39,822.44
  6. Step 6: Final answer
    x = 30,253.12

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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.