Home / 26,679.76-40,019.48-10,891.28

Finding the Fourth Proportional to 26,679.76, 40,019.48 and 10,891.28

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Solution

The fourth proportional to 26,679.76, 40,019.48 and 10,891.28 is: 16,336.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,679.76 : 40,019.48 = 10,891.28 : x
  2. Step 2: Convert to fraction form
    26,679.76/40,019.48 = 10,891.28/x
  3. Step 3: Cross multiply
    26,679.76x = 40,019.48 × 10,891.28
  4. Step 4: Simplify right side
    26,679.76x = 435,863,362.13
  5. Step 5: Solve for x
    x = 435,863,362.13/26,679.76
  6. Step 6: Final answer
    x = 16,336.85

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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.