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Finding the Fourth Proportional to 33,007.20, 49,510.80 and 10,821.30

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Solution

The fourth proportional to 33,007.20, 49,510.80 and 10,821.30 is: 16,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,007.20 : 49,510.80 = 10,821.30 : x
  2. Step 2: Convert to fraction form
    33,007.20/49,510.80 = 10,821.30/x
  3. Step 3: Cross multiply
    33,007.20x = 49,510.80 × 10,821.30
  4. Step 4: Simplify right side
    33,007.20x = 535,771,220.04
  5. Step 5: Solve for x
    x = 535,771,220.04/33,007.20
  6. Step 6: Final answer
    x = 16,231.95

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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.