Home / 28,309.28-39,055.92-18,236.94

Finding the Fourth Proportional to 28,309.28, 39,055.92 and 18,236.94

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Solution

The fourth proportional to 28,309.28, 39,055.92 and 18,236.94 is: 25,159.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.28 : 39,055.92 = 18,236.94 : x
  2. Step 2: Convert to fraction form
    28,309.28/39,055.92 = 18,236.94/x
  3. Step 3: Cross multiply
    28,309.28x = 39,055.92 × 18,236.94
  4. Step 4: Simplify right side
    28,309.28x = 712,260,469.68
  5. Step 5: Solve for x
    x = 712,260,469.68/28,309.28
  6. Step 6: Final answer
    x = 25,159.96

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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.