Home / 39,853.96-54,998.05-21,948.59

Finding the Fourth Proportional to 39,853.96, 54,998.05 and 21,948.59

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Solution

The fourth proportional to 39,853.96, 54,998.05 and 21,948.59 is: 30,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,853.96 : 54,998.05 = 21,948.59 : x
  2. Step 2: Convert to fraction form
    39,853.96/54,998.05 = 21,948.59/x
  3. Step 3: Cross multiply
    39,853.96x = 54,998.05 × 21,948.59
  4. Step 4: Simplify right side
    39,853.96x = 1,207,129,650.25
  5. Step 5: Solve for x
    x = 1,207,129,650.25/39,853.96
  6. Step 6: Final answer
    x = 30,288.83

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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.