Home / 26,919.20-40,364.40-9,389.60

Finding the Fourth Proportional to 26,919.20, 40,364.40 and 9,389.60

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Solution

The fourth proportional to 26,919.20, 40,364.40 and 9,389.60 is: 14,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919.20 : 40,364.40 = 9,389.60 : x
  2. Step 2: Convert to fraction form
    26,919.20/40,364.40 = 9,389.60/x
  3. Step 3: Cross multiply
    26,919.20x = 40,364.40 × 9,389.60
  4. Step 4: Simplify right side
    26,919.20x = 379,005,570.24
  5. Step 5: Solve for x
    x = 379,005,570.24/26,919.20
  6. Step 6: Final answer
    x = 14,079.38

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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.