Home / 26,928.82-40,401.48-13,790.42

Finding the Fourth Proportional to 26,928.82, 40,401.48 and 13,790.42

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Solution

The fourth proportional to 26,928.82, 40,401.48 and 13,790.42 is: 20,689.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,928.82 : 40,401.48 = 13,790.42 : x
  2. Step 2: Convert to fraction form
    26,928.82/40,401.48 = 13,790.42/x
  3. Step 3: Cross multiply
    26,928.82x = 40,401.48 × 13,790.42
  4. Step 4: Simplify right side
    26,928.82x = 557,153,377.82
  5. Step 5: Solve for x
    x = 557,153,377.82/26,928.82
  6. Step 6: Final answer
    x = 20,689.85

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1.5x scale

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.