Home / 26,219.20-39,330.60-8,689.36

Finding the Fourth Proportional to 26,219.20, 39,330.60 and 8,689.36

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Solution

The fourth proportional to 26,219.20, 39,330.60 and 8,689.36 is: 13,034.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,219.20 : 39,330.60 = 8,689.36 : x
  2. Step 2: Convert to fraction form
    26,219.20/39,330.60 = 8,689.36/x
  3. Step 3: Cross multiply
    26,219.20x = 39,330.60 × 8,689.36
  4. Step 4: Simplify right side
    26,219.20x = 341,757,742.42
  5. Step 5: Solve for x
    x = 341,757,742.42/26,219.20
  6. Step 6: Final answer
    x = 13,034.64

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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.