Home / 20,294.65-28,006.57-11,801.75

Finding the Fourth Proportional to 20,294.65, 28,006.57 and 11,801.75

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Solution

The fourth proportional to 20,294.65, 28,006.57 and 11,801.75 is: 16,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.65 : 28,006.57 = 11,801.75 : x
  2. Step 2: Convert to fraction form
    20,294.65/28,006.57 = 11,801.75/x
  3. Step 3: Cross multiply
    20,294.65x = 28,006.57 × 11,801.75
  4. Step 4: Simplify right side
    20,294.65x = 330,526,537.50
  5. Step 5: Solve for x
    x = 330,526,537.50/20,294.65
  6. Step 6: Final answer
    x = 16,286.39

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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.