Home / 39,997.18-55,195.77-22,769.65

Finding the Fourth Proportional to 39,997.18, 55,195.77 and 22,769.65

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Solution

The fourth proportional to 39,997.18, 55,195.77 and 22,769.65 is: 31,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,997.18 : 55,195.77 = 22,769.65 : x
  2. Step 2: Convert to fraction form
    39,997.18/55,195.77 = 22,769.65/x
  3. Step 3: Cross multiply
    39,997.18x = 55,195.77 × 22,769.65
  4. Step 4: Simplify right side
    39,997.18x = 1,256,788,364.38
  5. Step 5: Solve for x
    x = 1,256,788,364.38/39,997.18
  6. Step 6: Final answer
    x = 31,421.92

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Double scale
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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.