Home / 39,854.62-54,998.76-21,949.30

Finding the Fourth Proportional to 39,854.62, 54,998.76 and 21,949.30

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Solution

The fourth proportional to 39,854.62, 54,998.76 and 21,949.30 is: 30,289.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,854.62 : 54,998.76 = 21,949.30 : x
  2. Step 2: Convert to fraction form
    39,854.62/54,998.76 = 21,949.30/x
  3. Step 3: Cross multiply
    39,854.62x = 54,998.76 × 21,949.30
  4. Step 4: Simplify right side
    39,854.62x = 1,207,184,282.87
  5. Step 5: Solve for x
    x = 1,207,184,282.87/39,854.62
  6. Step 6: Final answer
    x = 30,289.69

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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.