Home / 39,947.05-55,126.89-22,042.06

Finding the Fourth Proportional to 39,947.05, 55,126.89 and 22,042.06

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Solution

The fourth proportional to 39,947.05, 55,126.89 and 22,042.06 is: 30,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,947.05 : 55,126.89 = 22,042.06 : x
  2. Step 2: Convert to fraction form
    39,947.05/55,126.89 = 22,042.06/x
  3. Step 3: Cross multiply
    39,947.05x = 55,126.89 × 22,042.06
  4. Step 4: Simplify right side
    39,947.05x = 1,215,110,216.99
  5. Step 5: Solve for x
    x = 1,215,110,216.99/39,947.05
  6. Step 6: Final answer
    x = 30,418.02

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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.