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Finding the Fourth Proportional to 22,505.08, 31,050.12 and 13,071.76

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Solution

The fourth proportional to 22,505.08, 31,050.12 and 13,071.76 is: 18,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,505.08 : 31,050.12 = 13,071.76 : x
  2. Step 2: Convert to fraction form
    22,505.08/31,050.12 = 13,071.76/x
  3. Step 3: Cross multiply
    22,505.08x = 31,050.12 × 13,071.76
  4. Step 4: Simplify right side
    22,505.08x = 405,879,716.61
  5. Step 5: Solve for x
    x = 405,879,716.61/22,505.08
  6. Step 6: Final answer
    x = 18,035.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.