Home / 21,564.10-29,757.21-12,132.10

Finding the Fourth Proportional to 21,564.10, 29,757.21 and 12,132.10

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Solution

The fourth proportional to 21,564.10, 29,757.21 and 12,132.10 is: 16,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,564.10 : 29,757.21 = 12,132.10 : x
  2. Step 2: Convert to fraction form
    21,564.10/29,757.21 = 12,132.10/x
  3. Step 3: Cross multiply
    21,564.10x = 29,757.21 × 12,132.10
  4. Step 4: Simplify right side
    21,564.10x = 361,017,447.44
  5. Step 5: Solve for x
    x = 361,017,447.44/21,564.10
  6. Step 6: Final answer
    x = 16,741.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.