Home / 26,858.88-40,284.60-7,139.04

Finding the Fourth Proportional to 26,858.88, 40,284.60 and 7,139.04

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Solution

The fourth proportional to 26,858.88, 40,284.60 and 7,139.04 is: 10,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,858.88 : 40,284.60 = 7,139.04 : x
  2. Step 2: Convert to fraction form
    26,858.88/40,284.60 = 7,139.04/x
  3. Step 3: Cross multiply
    26,858.88x = 40,284.60 × 7,139.04
  4. Step 4: Simplify right side
    26,858.88x = 287,593,370.78
  5. Step 5: Solve for x
    x = 287,593,370.78/26,858.88
  6. Step 6: Final answer
    x = 10,707.57

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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.