Home / 20,741.72-28,622.54-11,788.04

Finding the Fourth Proportional to 20,741.72, 28,622.54 and 11,788.04

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Solution

The fourth proportional to 20,741.72, 28,622.54 and 11,788.04 is: 16,266.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.72 : 28,622.54 = 11,788.04 : x
  2. Step 2: Convert to fraction form
    20,741.72/28,622.54 = 11,788.04/x
  3. Step 3: Cross multiply
    20,741.72x = 28,622.54 × 11,788.04
  4. Step 4: Simplify right side
    20,741.72x = 337,403,646.42
  5. Step 5: Solve for x
    x = 337,403,646.42/20,741.72
  6. Step 6: Final answer
    x = 16,266.91

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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.