Home / 18,327.08-27,428.31-11,311.53

Finding the Fourth Proportional to 18,327.08, 27,428.31 and 11,311.53

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Solution

The fourth proportional to 18,327.08, 27,428.31 and 11,311.53 is: 16,928.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.08 : 27,428.31 = 11,311.53 : x
  2. Step 2: Convert to fraction form
    18,327.08/27,428.31 = 11,311.53/x
  3. Step 3: Cross multiply
    18,327.08x = 27,428.31 × 11,311.53
  4. Step 4: Simplify right side
    18,327.08x = 310,256,151.41
  5. Step 5: Solve for x
    x = 310,256,151.41/18,327.08
  6. Step 6: Final answer
    x = 16,928.84

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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.