Home / 18,328.42-27,490.20-5,181.82

Finding the Fourth Proportional to 18,328.42, 27,490.20 and 5,181.82

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Solution

The fourth proportional to 18,328.42, 27,490.20 and 5,181.82 is: 7,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.42 : 27,490.20 = 5,181.82 : x
  2. Step 2: Convert to fraction form
    18,328.42/27,490.20 = 5,181.82/x
  3. Step 3: Cross multiply
    18,328.42x = 27,490.20 × 5,181.82
  4. Step 4: Simplify right side
    18,328.42x = 142,449,268.16
  5. Step 5: Solve for x
    x = 142,449,268.16/18,328.42
  6. Step 6: Final answer
    x = 7,772.04

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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.