Home / 20,314.41-28,033.74-11,816.70

Finding the Fourth Proportional to 20,314.41, 28,033.74 and 11,816.70

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Solution

The fourth proportional to 20,314.41, 28,033.74 and 11,816.70 is: 16,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.41 : 28,033.74 = 11,816.70 : x
  2. Step 2: Convert to fraction form
    20,314.41/28,033.74 = 11,816.70/x
  3. Step 3: Cross multiply
    20,314.41x = 28,033.74 × 11,816.70
  4. Step 4: Simplify right side
    20,314.41x = 331,266,295.46
  5. Step 5: Solve for x
    x = 331,266,295.46/20,314.41
  6. Step 6: Final answer
    x = 16,306.96

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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.