Home / 26,019.11-38,991.30-12,856.10

Finding the Fourth Proportional to 26,019.11, 38,991.30 and 12,856.10

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Solution

The fourth proportional to 26,019.11, 38,991.30 and 12,856.10 is: 19,265.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,019.11 : 38,991.30 = 12,856.10 : x
  2. Step 2: Convert to fraction form
    26,019.11/38,991.30 = 12,856.10/x
  3. Step 3: Cross multiply
    26,019.11x = 38,991.30 × 12,856.10
  4. Step 4: Simplify right side
    26,019.11x = 501,275,856.97
  5. Step 5: Solve for x
    x = 501,275,856.97/26,019.11
  6. Step 6: Final answer
    x = 19,265.68

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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.