Home / 39,982.72-55,176.60-22,077.70

Finding the Fourth Proportional to 39,982.72, 55,176.60 and 22,077.70

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Solution

The fourth proportional to 39,982.72, 55,176.60 and 22,077.70 is: 30,467.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,982.72 : 55,176.60 = 22,077.70 : x
  2. Step 2: Convert to fraction form
    39,982.72/55,176.60 = 22,077.70/x
  3. Step 3: Cross multiply
    39,982.72x = 55,176.60 × 22,077.70
  4. Step 4: Simplify right side
    39,982.72x = 1,218,172,421.82
  5. Step 5: Solve for x
    x = 1,218,172,421.82/39,982.72
  6. Step 6: Final answer
    x = 30,467.47

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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.