Home / 39,398.53-54,374.58-22,405.31

Finding the Fourth Proportional to 39,398.53, 54,374.58 and 22,405.31

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Solution

The fourth proportional to 39,398.53, 54,374.58 and 22,405.31 is: 30,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.53 : 54,374.58 = 22,405.31 : x
  2. Step 2: Convert to fraction form
    39,398.53/54,374.58 = 22,405.31/x
  3. Step 3: Cross multiply
    39,398.53x = 54,374.58 × 22,405.31
  4. Step 4: Simplify right side
    39,398.53x = 1,218,278,937.12
  5. Step 5: Solve for x
    x = 1,218,278,937.12/39,398.53
  6. Step 6: Final answer
    x = 30,921.94

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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.