Home / 39,305.15-54,236.41-23,160.23

Finding the Fourth Proportional to 39,305.15, 54,236.41 and 23,160.23

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Solution

The fourth proportional to 39,305.15, 54,236.41 and 23,160.23 is: 31,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,305.15 : 54,236.41 = 23,160.23 : x
  2. Step 2: Convert to fraction form
    39,305.15/54,236.41 = 23,160.23/x
  3. Step 3: Cross multiply
    39,305.15x = 54,236.41 × 23,160.23
  4. Step 4: Simplify right side
    39,305.15x = 1,256,127,865.57
  5. Step 5: Solve for x
    x = 1,256,127,865.57/39,305.15
  6. Step 6: Final answer
    x = 31,958.35

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Double scale
Find fourth proportional to 39,306.15, 54,237.79 and 23,161.23
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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.