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Finding the Fourth Proportional to 42,662.40, 63,989.76 and 14,958.72

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Solution

The fourth proportional to 42,662.40, 63,989.76 and 14,958.72 is: 22,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,662.40 : 63,989.76 = 14,958.72 : x
  2. Step 2: Convert to fraction form
    42,662.40/63,989.76 = 14,958.72/x
  3. Step 3: Cross multiply
    42,662.40x = 63,989.76 × 14,958.72
  4. Step 4: Simplify right side
    42,662.40x = 957,204,902.71
  5. Step 5: Solve for x
    x = 957,204,902.71/42,662.40
  6. Step 6: Final answer
    x = 22,436.73

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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.