Home / 39,188.39-54,079.51-21,283.54

Finding the Fourth Proportional to 39,188.39, 54,079.51 and 21,283.54

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Solution

The fourth proportional to 39,188.39, 54,079.51 and 21,283.54 is: 29,371.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.39 : 54,079.51 = 21,283.54 : x
  2. Step 2: Convert to fraction form
    39,188.39/54,079.51 = 21,283.54/x
  3. Step 3: Cross multiply
    39,188.39x = 54,079.51 × 21,283.54
  4. Step 4: Simplify right side
    39,188.39x = 1,151,003,414.27
  5. Step 5: Solve for x
    x = 1,151,003,414.27/39,188.39
  6. Step 6: Final answer
    x = 29,371.03

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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.