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Finding the Fourth Proportional to 33,458.80, 50,188.20 and 13,727.20

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Solution

The fourth proportional to 33,458.80, 50,188.20 and 13,727.20 is: 20,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,458.80 : 50,188.20 = 13,727.20 : x
  2. Step 2: Convert to fraction form
    33,458.80/50,188.20 = 13,727.20/x
  3. Step 3: Cross multiply
    33,458.80x = 50,188.20 × 13,727.20
  4. Step 4: Simplify right side
    33,458.80x = 688,943,459.04
  5. Step 5: Solve for x
    x = 688,943,459.04/33,458.80
  6. Step 6: Final answer
    x = 20,590.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.