Home / 33,278.40-45,920.16-18,373.44

Finding the Fourth Proportional to 33,278.40, 45,920.16 and 18,373.44

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Solution

The fourth proportional to 33,278.40, 45,920.16 and 18,373.44 is: 25,353.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,278.40 : 45,920.16 = 18,373.44 : x
  2. Step 2: Convert to fraction form
    33,278.40/45,920.16 = 18,373.44/x
  3. Step 3: Cross multiply
    33,278.40x = 45,920.16 × 18,373.44
  4. Step 4: Simplify right side
    33,278.40x = 843,711,304.55
  5. Step 5: Solve for x
    x = 843,711,304.55/33,278.40
  6. Step 6: Final answer
    x = 25,353.12

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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.