Home / 26,943.19-40,419.68-11,139.64

Finding the Fourth Proportional to 26,943.19, 40,419.68 and 11,139.64

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Solution

The fourth proportional to 26,943.19, 40,419.68 and 11,139.64 is: 16,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,943.19 : 40,419.68 = 11,139.64 : x
  2. Step 2: Convert to fraction form
    26,943.19/40,419.68 = 11,139.64/x
  3. Step 3: Cross multiply
    26,943.19x = 40,419.68 × 11,139.64
  4. Step 4: Simplify right side
    26,943.19x = 450,260,684.12
  5. Step 5: Solve for x
    x = 450,260,684.12/26,943.19
  6. Step 6: Final answer
    x = 16,711.48

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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.