Home / 39,979.50-55,171.79-22,074.54

Finding the Fourth Proportional to 39,979.50, 55,171.79 and 22,074.54

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Solution

The fourth proportional to 39,979.50, 55,171.79 and 22,074.54 is: 30,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.50 : 55,171.79 = 22,074.54 : x
  2. Step 2: Convert to fraction form
    39,979.50/55,171.79 = 22,074.54/x
  3. Step 3: Cross multiply
    39,979.50x = 55,171.79 × 22,074.54
  4. Step 4: Simplify right side
    39,979.50x = 1,217,891,885.23
  5. Step 5: Solve for x
    x = 1,217,891,885.23/39,979.50
  6. Step 6: Final answer
    x = 30,462.91

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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.