Home / 20,575.95-28,394.82-11,144.52

Finding the Fourth Proportional to 20,575.95, 28,394.82 and 11,144.52

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Solution

The fourth proportional to 20,575.95, 28,394.82 and 11,144.52 is: 15,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.95 : 28,394.82 = 11,144.52 : x
  2. Step 2: Convert to fraction form
    20,575.95/28,394.82 = 11,144.52/x
  3. Step 3: Cross multiply
    20,575.95x = 28,394.82 × 11,144.52
  4. Step 4: Simplify right side
    20,575.95x = 316,446,639.39
  5. Step 5: Solve for x
    x = 316,446,639.39/20,575.95
  6. Step 6: Final answer
    x = 15,379.44

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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.