Home / 42,828.76-64,241.16-11,238.04

Finding the Fourth Proportional to 42,828.76, 64,241.16 and 11,238.04

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Solution

The fourth proportional to 42,828.76, 64,241.16 and 11,238.04 is: 16,856.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,828.76 : 64,241.16 = 11,238.04 : x
  2. Step 2: Convert to fraction form
    42,828.76/64,241.16 = 11,238.04/x
  3. Step 3: Cross multiply
    42,828.76x = 64,241.16 × 11,238.04
  4. Step 4: Simplify right side
    42,828.76x = 721,944,725.73
  5. Step 5: Solve for x
    x = 721,944,725.73/42,828.76
  6. Step 6: Final answer
    x = 16,856.54

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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.