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Finding the Fourth Proportional to 32,891.81, 45,391.25 and 18,744.89

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Solution

The fourth proportional to 32,891.81, 45,391.25 and 18,744.89 is: 25,868.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,891.81 : 45,391.25 = 18,744.89 : x
  2. Step 2: Convert to fraction form
    32,891.81/45,391.25 = 18,744.89/x
  3. Step 3: Cross multiply
    32,891.81x = 45,391.25 × 18,744.89
  4. Step 4: Simplify right side
    32,891.81x = 850,853,808.12
  5. Step 5: Solve for x
    x = 850,853,808.12/32,891.81
  6. Step 6: Final answer
    x = 25,868.26

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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.