Home / 20,696.44-31,046.22-14,187.16

Finding the Fourth Proportional to 20,696.44, 31,046.22 and 14,187.16

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Solution

The fourth proportional to 20,696.44, 31,046.22 and 14,187.16 is: 21,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.44 : 31,046.22 = 14,187.16 : x
  2. Step 2: Convert to fraction form
    20,696.44/31,046.22 = 14,187.16/x
  3. Step 3: Cross multiply
    20,696.44x = 31,046.22 × 14,187.16
  4. Step 4: Simplify right side
    20,696.44x = 440,457,690.54
  5. Step 5: Solve for x
    x = 440,457,690.54/20,696.44
  6. Step 6: Final answer
    x = 21,281.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.