Home / 40,010.39-55,214.92-22,105.81

Finding the Fourth Proportional to 40,010.39, 55,214.92 and 22,105.81

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Solution

The fourth proportional to 40,010.39, 55,214.92 and 22,105.81 is: 30,506.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,010.39 : 55,214.92 = 22,105.81 : x
  2. Step 2: Convert to fraction form
    40,010.39/55,214.92 = 22,105.81/x
  3. Step 3: Cross multiply
    40,010.39x = 55,214.92 × 22,105.81
  4. Step 4: Simplify right side
    40,010.39x = 1,220,570,337.38
  5. Step 5: Solve for x
    x = 1,220,570,337.38/40,010.39
  6. Step 6: Final answer
    x = 30,506.34

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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.