Home / 26,928.72-40,407.12-20,352.96

Finding the Fourth Proportional to 26,928.72, 40,407.12 and 20,352.96

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Solution

The fourth proportional to 26,928.72, 40,407.12 and 20,352.96 is: 30,540.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,928.72 : 40,407.12 = 20,352.96 : x
  2. Step 2: Convert to fraction form
    26,928.72/40,407.12 = 20,352.96/x
  3. Step 3: Cross multiply
    26,928.72x = 40,407.12 × 20,352.96
  4. Step 4: Simplify right side
    26,928.72x = 822,404,497.08
  5. Step 5: Solve for x
    x = 822,404,497.08/26,928.72
  6. Step 6: Final answer
    x = 30,540.05

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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.