Home / 21,655.55-32,441.26-12,266.64

Finding the Fourth Proportional to 21,655.55, 32,441.26 and 12,266.64

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Solution

The fourth proportional to 21,655.55, 32,441.26 and 12,266.64 is: 18,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.55 : 32,441.26 = 12,266.64 : x
  2. Step 2: Convert to fraction form
    21,655.55/32,441.26 = 12,266.64/x
  3. Step 3: Cross multiply
    21,655.55x = 32,441.26 × 12,266.64
  4. Step 4: Simplify right side
    21,655.55x = 397,945,249.90
  5. Step 5: Solve for x
    x = 397,945,249.90/21,655.55
  6. Step 6: Final answer
    x = 18,376.13

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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.