Home / 20,705.06-31,066.72-16,065.38

Finding the Fourth Proportional to 20,705.06, 31,066.72 and 16,065.38

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Solution

The fourth proportional to 20,705.06, 31,066.72 and 16,065.38 is: 24,105.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.06 : 31,066.72 = 16,065.38 : x
  2. Step 2: Convert to fraction form
    20,705.06/31,066.72 = 16,065.38/x
  3. Step 3: Cross multiply
    20,705.06x = 31,066.72 × 16,065.38
  4. Step 4: Simplify right side
    20,705.06x = 499,098,662.15
  5. Step 5: Solve for x
    x = 499,098,662.15/20,705.06
  6. Step 6: Final answer
    x = 24,105.15

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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.