Home / 33,119.28-45,706.21-18,972.16

Finding the Fourth Proportional to 33,119.28, 45,706.21 and 18,972.16

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Solution

The fourth proportional to 33,119.28, 45,706.21 and 18,972.16 is: 26,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,119.28 : 45,706.21 = 18,972.16 : x
  2. Step 2: Convert to fraction form
    33,119.28/45,706.21 = 18,972.16/x
  3. Step 3: Cross multiply
    33,119.28x = 45,706.21 × 18,972.16
  4. Step 4: Simplify right side
    33,119.28x = 867,145,367.42
  5. Step 5: Solve for x
    x = 867,145,367.42/33,119.28
  6. Step 6: Final answer
    x = 26,182.49

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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.