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Finding the Fourth Proportional to 33,089.79, 45,664.79 and 18,947.19

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Solution

The fourth proportional to 33,089.79, 45,664.79 and 18,947.19 is: 26,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,089.79 : 45,664.79 = 18,947.19 : x
  2. Step 2: Convert to fraction form
    33,089.79/45,664.79 = 18,947.19/x
  3. Step 3: Cross multiply
    33,089.79x = 45,664.79 × 18,947.19
  4. Step 4: Simplify right side
    33,089.79x = 865,219,357.70
  5. Step 5: Solve for x
    x = 865,219,357.70/33,089.79
  6. Step 6: Final answer
    x = 26,147.62

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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.