Home / 42,619.31-63,928.94-11,454.56

Finding the Fourth Proportional to 42,619.31, 63,928.94 and 11,454.56

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Solution

The fourth proportional to 42,619.31, 63,928.94 and 11,454.56 is: 17,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,619.31 : 63,928.94 = 11,454.56 : x
  2. Step 2: Convert to fraction form
    42,619.31/63,928.94 = 11,454.56/x
  3. Step 3: Cross multiply
    42,619.31x = 63,928.94 × 11,454.56
  4. Step 4: Simplify right side
    42,619.31x = 732,277,502.05
  5. Step 5: Solve for x
    x = 732,277,502.05/42,619.31
  6. Step 6: Final answer
    x = 17,181.83

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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.