Home / 39,945.32-55,126.32-22,040.36

Finding the Fourth Proportional to 39,945.32, 55,126.32 and 22,040.36

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Solution

The fourth proportional to 39,945.32, 55,126.32 and 22,040.36 is: 30,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,945.32 : 55,126.32 = 22,040.36 : x
  2. Step 2: Convert to fraction form
    39,945.32/55,126.32 = 22,040.36/x
  3. Step 3: Cross multiply
    39,945.32x = 55,126.32 × 22,040.36
  4. Step 4: Simplify right side
    39,945.32x = 1,215,003,938.28
  5. Step 5: Solve for x
    x = 1,215,003,938.28/39,945.32
  6. Step 6: Final answer
    x = 30,416.68

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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.