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Finding the Fourth Proportional to 14,717.80, 22,015.95 and 13,420.18

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Solution

The fourth proportional to 14,717.80, 22,015.95 and 13,420.18 is: 20,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,717.80 : 22,015.95 = 13,420.18 : x
  2. Step 2: Convert to fraction form
    14,717.80/22,015.95 = 13,420.18/x
  3. Step 3: Cross multiply
    14,717.80x = 22,015.95 × 13,420.18
  4. Step 4: Simplify right side
    14,717.80x = 295,458,011.87
  5. Step 5: Solve for x
    x = 295,458,011.87/14,717.80
  6. Step 6: Final answer
    x = 20,074.88

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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.