Home / 26,878.90-40,265.12-18,424.60

Finding the Fourth Proportional to 26,878.90, 40,265.12 and 18,424.60

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Solution

The fourth proportional to 26,878.90, 40,265.12 and 18,424.60 is: 27,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,878.90 : 40,265.12 = 18,424.60 : x
  2. Step 2: Convert to fraction form
    26,878.90/40,265.12 = 18,424.60/x
  3. Step 3: Cross multiply
    26,878.90x = 40,265.12 × 18,424.60
  4. Step 4: Simplify right side
    26,878.90x = 741,868,729.95
  5. Step 5: Solve for x
    x = 741,868,729.95/26,878.90
  6. Step 6: Final answer
    x = 27,600.41

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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.