Home / 32,989.28-45,520.26-18,839.12

Finding the Fourth Proportional to 32,989.28, 45,520.26 and 18,839.12

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Solution

The fourth proportional to 32,989.28, 45,520.26 and 18,839.12 is: 25,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,989.28 : 45,520.26 = 18,839.12 : x
  2. Step 2: Convert to fraction form
    32,989.28/45,520.26 = 18,839.12/x
  3. Step 3: Cross multiply
    32,989.28x = 45,520.26 × 18,839.12
  4. Step 4: Simplify right side
    32,989.28x = 857,561,640.57
  5. Step 5: Solve for x
    x = 857,561,640.57/32,989.28
  6. Step 6: Final answer
    x = 25,995.16

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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.