Home / 39,236.60-54,147.04-21,331.57

Finding the Fourth Proportional to 39,236.60, 54,147.04 and 21,331.57

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Solution

The fourth proportional to 39,236.60, 54,147.04 and 21,331.57 is: 29,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,236.60 : 54,147.04 = 21,331.57 : x
  2. Step 2: Convert to fraction form
    39,236.60/54,147.04 = 21,331.57/x
  3. Step 3: Cross multiply
    39,236.60x = 54,147.04 × 21,331.57
  4. Step 4: Simplify right side
    39,236.60x = 1,155,041,208.44
  5. Step 5: Solve for x
    x = 1,155,041,208.44/39,236.60
  6. Step 6: Final answer
    x = 29,437.85

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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.