Home / 39,236.97-54,148.08-21,333.18

Finding the Fourth Proportional to 39,236.97, 54,148.08 and 21,333.18

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Solution

The fourth proportional to 39,236.97, 54,148.08 and 21,333.18 is: 29,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.97 : 54,148.08 = 21,333.18 : x
  2. Step 2: Convert to fraction form
    39,236.97/54,148.08 = 21,333.18/x
  3. Step 3: Cross multiply
    39,236.97x = 54,148.08 × 21,333.18
  4. Step 4: Simplify right side
    39,236.97x = 1,155,150,737.29
  5. Step 5: Solve for x
    x = 1,155,150,737.29/39,236.97
  6. Step 6: Final answer
    x = 29,440.37

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Half scale
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Double scale
Find fourth proportional to 39,237.97, 54,149.46 and 21,334.18
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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.