Home / 39,158.87-54,026.38-22,161.43

Finding the Fourth Proportional to 39,158.87, 54,026.38 and 22,161.43

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Solution

The fourth proportional to 39,158.87, 54,026.38 and 22,161.43 is: 30,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158.87 : 54,026.38 = 22,161.43 : x
  2. Step 2: Convert to fraction form
    39,158.87/54,026.38 = 22,161.43/x
  3. Step 3: Cross multiply
    39,158.87x = 54,026.38 × 22,161.43
  4. Step 4: Simplify right side
    39,158.87x = 1,197,301,648.05
  5. Step 5: Solve for x
    x = 1,197,301,648.05/39,158.87
  6. Step 6: Final answer
    x = 30,575.49

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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.