Home / 22,187.75-30,619.35-12,116.31

Finding the Fourth Proportional to 22,187.75, 30,619.35 and 12,116.31

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Solution

The fourth proportional to 22,187.75, 30,619.35 and 12,116.31 is: 16,720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.75 : 30,619.35 = 12,116.31 : x
  2. Step 2: Convert to fraction form
    22,187.75/30,619.35 = 12,116.31/x
  3. Step 3: Cross multiply
    22,187.75x = 30,619.35 × 12,116.31
  4. Step 4: Simplify right side
    22,187.75x = 370,993,491.16
  5. Step 5: Solve for x
    x = 370,993,491.16/22,187.75
  6. Step 6: Final answer
    x = 16,720.65

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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.