Home / 33,121.20-45,718.99-19,692.39

Finding the Fourth Proportional to 33,121.20, 45,718.99 and 19,692.39

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Solution

The fourth proportional to 33,121.20, 45,718.99 and 19,692.39 is: 27,182.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.20 : 45,718.99 = 19,692.39 : x
  2. Step 2: Convert to fraction form
    33,121.20/45,718.99 = 19,692.39/x
  3. Step 3: Cross multiply
    33,121.20x = 45,718.99 × 19,692.39
  4. Step 4: Simplify right side
    33,121.20x = 900,316,181.49
  5. Step 5: Solve for x
    x = 900,316,181.49/33,121.20
  6. Step 6: Final answer
    x = 27,182.47

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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.