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Finding the Fourth Proportional to 33,243.70, 45,870.03 and 19,816.20

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Solution

The fourth proportional to 33,243.70, 45,870.03 and 19,816.20 is: 27,342.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,243.70 : 45,870.03 = 19,816.20 : x
  2. Step 2: Convert to fraction form
    33,243.70/45,870.03 = 19,816.20/x
  3. Step 3: Cross multiply
    33,243.70x = 45,870.03 × 19,816.20
  4. Step 4: Simplify right side
    33,243.70x = 908,969,688.49
  5. Step 5: Solve for x
    x = 908,969,688.49/33,243.70
  6. Step 6: Final answer
    x = 27,342.61

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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.