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Finding the Fourth Proportional to 34,290.47, 47,318.93 and 19,180.21

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Solution

The fourth proportional to 34,290.47, 47,318.93 and 19,180.21 is: 26,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,290.47 : 47,318.93 = 19,180.21 : x
  2. Step 2: Convert to fraction form
    34,290.47/47,318.93 = 19,180.21/x
  3. Step 3: Cross multiply
    34,290.47x = 47,318.93 × 19,180.21
  4. Step 4: Simplify right side
    34,290.47x = 907,586,777.78
  5. Step 5: Solve for x
    x = 907,586,777.78/34,290.47
  6. Step 6: Final answer
    x = 26,467.61

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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.