Home / 39,398.72-54,374.85-22,405.55

Finding the Fourth Proportional to 39,398.72, 54,374.85 and 22,405.55

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Solution

The fourth proportional to 39,398.72, 54,374.85 and 22,405.55 is: 30,922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.72 : 54,374.85 = 22,405.55 : x
  2. Step 2: Convert to fraction form
    39,398.72/54,374.85 = 22,405.55/x
  3. Step 3: Cross multiply
    39,398.72x = 54,374.85 × 22,405.55
  4. Step 4: Simplify right side
    39,398.72x = 1,218,298,148.54
  5. Step 5: Solve for x
    x = 1,218,298,148.54/39,398.72
  6. Step 6: Final answer
    x = 30,922.28

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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.