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Finding the Fourth Proportional to 33,225.60, 49,780.80 and 21,532.80

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Solution

The fourth proportional to 33,225.60, 49,780.80 and 21,532.80 is: 32,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,225.60 : 49,780.80 = 21,532.80 : x
  2. Step 2: Convert to fraction form
    33,225.60/49,780.80 = 21,532.80/x
  3. Step 3: Cross multiply
    33,225.60x = 49,780.80 × 21,532.80
  4. Step 4: Simplify right side
    33,225.60x = 1,071,920,010.24
  5. Step 5: Solve for x
    x = 1,071,920,010.24/33,225.60
  6. Step 6: Final answer
    x = 32,261.87

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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.