Home / 23,439.60-35,161.16-7,857.20

Finding the Fourth Proportional to 23,439.60, 35,161.16 and 7,857.20

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Solution

The fourth proportional to 23,439.60, 35,161.16 and 7,857.20 is: 11,786.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,439.60 : 35,161.16 = 7,857.20 : x
  2. Step 2: Convert to fraction form
    23,439.60/35,161.16 = 7,857.20/x
  3. Step 3: Cross multiply
    23,439.60x = 35,161.16 × 7,857.20
  4. Step 4: Simplify right side
    23,439.60x = 276,268,266.35
  5. Step 5: Solve for x
    x = 276,268,266.35/23,439.60
  6. Step 6: Final answer
    x = 11,786.39

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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.