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Finding the Fourth Proportional to 14,580.30, 21,873.49 and 5,220.55

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Solution

The fourth proportional to 14,580.30, 21,873.49 and 5,220.55 is: 7,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.30 : 21,873.49 = 5,220.55 : x
  2. Step 2: Convert to fraction form
    14,580.30/21,873.49 = 5,220.55/x
  3. Step 3: Cross multiply
    14,580.30x = 21,873.49 × 5,220.55
  4. Step 4: Simplify right side
    14,580.30x = 114,191,691.88
  5. Step 5: Solve for x
    x = 114,191,691.88/14,580.30
  6. Step 6: Final answer
    x = 7,831.91

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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.