Home / 26,858.28-40,284.35-7,138.36

Finding the Fourth Proportional to 26,858.28, 40,284.35 and 7,138.36

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Solution

The fourth proportional to 26,858.28, 40,284.35 and 7,138.36 is: 10,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,858.28 : 40,284.35 = 7,138.36 : x
  2. Step 2: Convert to fraction form
    26,858.28/40,284.35 = 7,138.36/x
  3. Step 3: Cross multiply
    26,858.28x = 40,284.35 × 7,138.36
  4. Step 4: Simplify right side
    26,858.28x = 287,564,192.67
  5. Step 5: Solve for x
    x = 287,564,192.67/26,858.28
  6. Step 6: Final answer
    x = 10,706.72

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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.