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Finding the Fourth Proportional to 63,326.80, 95,009.22 and 18,955

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Solution

The fourth proportional to 63,326.80, 95,009.22 and 18,955 is: 28,438.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,326.80 : 95,009.22 = 18,955 : x
  2. Step 2: Convert to fraction form
    63,326.80/95,009.22 = 18,955/x
  3. Step 3: Cross multiply
    63,326.80x = 95,009.22 × 18,955
  4. Step 4: Simplify right side
    63,326.80x = 1,800,899,765.10
  5. Step 5: Solve for x
    x = 1,800,899,765.10/63,326.80
  6. Step 6: Final answer
    x = 28,438.19

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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.