Home / 20,759.33-28,647.83-11,683.95

Finding the Fourth Proportional to 20,759.33, 28,647.83 and 11,683.95

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Solution

The fourth proportional to 20,759.33, 28,647.83 and 11,683.95 is: 16,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.33 : 28,647.83 = 11,683.95 : x
  2. Step 2: Convert to fraction form
    20,759.33/28,647.83 = 11,683.95/x
  3. Step 3: Cross multiply
    20,759.33x = 28,647.83 × 11,683.95
  4. Step 4: Simplify right side
    20,759.33x = 334,719,754.91
  5. Step 5: Solve for x
    x = 334,719,754.91/20,759.33
  6. Step 6: Final answer
    x = 16,123.83

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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.