Home / 39,853.05-54,997.56-21,948.68

Finding the Fourth Proportional to 39,853.05, 54,997.56 and 21,948.68

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Solution

The fourth proportional to 39,853.05, 54,997.56 and 21,948.68 is: 30,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,853.05 : 54,997.56 = 21,948.68 : x
  2. Step 2: Convert to fraction form
    39,853.05/54,997.56 = 21,948.68/x
  3. Step 3: Cross multiply
    39,853.05x = 54,997.56 × 21,948.68
  4. Step 4: Simplify right side
    39,853.05x = 1,207,123,570.23
  5. Step 5: Solve for x
    x = 1,207,123,570.23/39,853.05
  6. Step 6: Final answer
    x = 30,289.36

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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.