Home / 47,428.14-71,142.20-14,171.56

Finding the Fourth Proportional to 47,428.14, 71,142.20 and 14,171.56

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Solution

The fourth proportional to 47,428.14, 71,142.20 and 14,171.56 is: 21,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,428.14 : 71,142.20 = 14,171.56 : x
  2. Step 2: Convert to fraction form
    47,428.14/71,142.20 = 14,171.56/x
  3. Step 3: Cross multiply
    47,428.14x = 71,142.20 × 14,171.56
  4. Step 4: Simplify right side
    47,428.14x = 1,008,195,955.83
  5. Step 5: Solve for x
    x = 1,008,195,955.83/47,428.14
  6. Step 6: Final answer
    x = 21,257.34

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Why These Related Problems?

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