Home / 39,979.34-55,173.65-22,074.29

Finding the Fourth Proportional to 39,979.34, 55,173.65 and 22,074.29

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Solution

The fourth proportional to 39,979.34, 55,173.65 and 22,074.29 is: 30,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.34 : 55,173.65 = 22,074.29 : x
  2. Step 2: Convert to fraction form
    39,979.34/55,173.65 = 22,074.29/x
  3. Step 3: Cross multiply
    39,979.34x = 55,173.65 × 22,074.29
  4. Step 4: Simplify right side
    39,979.34x = 1,217,918,764.22
  5. Step 5: Solve for x
    x = 1,217,918,764.22/39,979.34
  6. Step 6: Final answer
    x = 30,463.71

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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.