Home / 26,969.55-40,447.84-13,815.15

Finding the Fourth Proportional to 26,969.55, 40,447.84 and 13,815.15

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Solution

The fourth proportional to 26,969.55, 40,447.84 and 13,815.15 is: 20,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,969.55 : 40,447.84 = 13,815.15 : x
  2. Step 2: Convert to fraction form
    26,969.55/40,447.84 = 13,815.15/x
  3. Step 3: Cross multiply
    26,969.55x = 40,447.84 × 13,815.15
  4. Step 4: Simplify right side
    26,969.55x = 558,792,976.78
  5. Step 5: Solve for x
    x = 558,792,976.78/26,969.55
  6. Step 6: Final answer
    x = 20,719.40

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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.