Home / 18,381.60-27,586.31-13,464.02

Finding the Fourth Proportional to 18,381.60, 27,586.31 and 13,464.02

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Solution

The fourth proportional to 18,381.60, 27,586.31 and 13,464.02 is: 20,206.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.60 : 27,586.31 = 13,464.02 : x
  2. Step 2: Convert to fraction form
    18,381.60/27,586.31 = 13,464.02/x
  3. Step 3: Cross multiply
    18,381.60x = 27,586.31 × 13,464.02
  4. Step 4: Simplify right side
    18,381.60x = 371,422,631.21
  5. Step 5: Solve for x
    x = 371,422,631.21/18,381.60
  6. Step 6: Final answer
    x = 20,206.22

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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.