Home / 26,865.60-40,255.20-16,987.20

Finding the Fourth Proportional to 26,865.60, 40,255.20 and 16,987.20

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Solution

The fourth proportional to 26,865.60, 40,255.20 and 16,987.20 is: 25,453.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,865.60 : 40,255.20 = 16,987.20 : x
  2. Step 2: Convert to fraction form
    26,865.60/40,255.20 = 16,987.20/x
  3. Step 3: Cross multiply
    26,865.60x = 40,255.20 × 16,987.20
  4. Step 4: Simplify right side
    26,865.60x = 683,823,133.44
  5. Step 5: Solve for x
    x = 683,823,133.44/26,865.60
  6. Step 6: Final answer
    x = 25,453.48

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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.