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Finding the Fourth Proportional to 15,391.98, 23,085.45 and 5,529.42

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Solution

The fourth proportional to 15,391.98, 23,085.45 and 5,529.42 is: 8,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391.98 : 23,085.45 = 5,529.42 : x
  2. Step 2: Convert to fraction form
    15,391.98/23,085.45 = 5,529.42/x
  3. Step 3: Cross multiply
    15,391.98x = 23,085.45 × 5,529.42
  4. Step 4: Simplify right side
    15,391.98x = 127,649,148.94
  5. Step 5: Solve for x
    x = 127,649,148.94/15,391.98
  6. Step 6: Final answer
    x = 8,293.22

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