Home / 39,979.65-55,171.68-22,074.51

Finding the Fourth Proportional to 39,979.65, 55,171.68 and 22,074.51

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Solution

The fourth proportional to 39,979.65, 55,171.68 and 22,074.51 is: 30,462.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.65 : 55,171.68 = 22,074.51 : x
  2. Step 2: Convert to fraction form
    39,979.65/55,171.68 = 22,074.51/x
  3. Step 3: Cross multiply
    39,979.65x = 55,171.68 × 22,074.51
  4. Step 4: Simplify right side
    39,979.65x = 1,217,887,801.88
  5. Step 5: Solve for x
    x = 1,217,887,801.88/39,979.65
  6. Step 6: Final answer
    x = 30,462.69

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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.