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Finding the Fourth Proportional to 33,089.49, 45,662.49 and 18,941.40

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Solution

The fourth proportional to 33,089.49, 45,662.49 and 18,941.40 is: 26,138.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,089.49 : 45,662.49 = 18,941.40 : x
  2. Step 2: Convert to fraction form
    33,089.49/45,662.49 = 18,941.40/x
  3. Step 3: Cross multiply
    33,089.49x = 45,662.49 × 18,941.40
  4. Step 4: Simplify right side
    33,089.49x = 864,911,488.09
  5. Step 5: Solve for x
    x = 864,911,488.09/33,089.49
  6. Step 6: Final answer
    x = 26,138.56

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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.