Home / 21,600.08-32,399.16-12,372.56

Finding the Fourth Proportional to 21,600.08, 32,399.16 and 12,372.56

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Solution

The fourth proportional to 21,600.08, 32,399.16 and 12,372.56 is: 18,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,600.08 : 32,399.16 = 12,372.56 : x
  2. Step 2: Convert to fraction form
    21,600.08/32,399.16 = 12,372.56/x
  3. Step 3: Cross multiply
    21,600.08x = 32,399.16 × 12,372.56
  4. Step 4: Simplify right side
    21,600.08x = 400,860,551.05
  5. Step 5: Solve for x
    x = 400,860,551.05/21,600.08
  6. Step 6: Final answer
    x = 18,558.29

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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.