Home / 40,161.75-55,424.43-22,255.08

Finding the Fourth Proportional to 40,161.75, 55,424.43 and 22,255.08

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Solution

The fourth proportional to 40,161.75, 55,424.43 and 22,255.08 is: 30,712.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,161.75 : 55,424.43 = 22,255.08 : x
  2. Step 2: Convert to fraction form
    40,161.75/55,424.43 = 22,255.08/x
  3. Step 3: Cross multiply
    40,161.75x = 55,424.43 × 22,255.08
  4. Step 4: Simplify right side
    40,161.75x = 1,233,475,123.60
  5. Step 5: Solve for x
    x = 1,233,475,123.60/40,161.75
  6. Step 6: Final answer
    x = 30,712.68

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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.