Home / 47,883.28-71,791.56-21,214.76

Finding the Fourth Proportional to 47,883.28, 71,791.56 and 21,214.76

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Solution

The fourth proportional to 47,883.28, 71,791.56 and 21,214.76 is: 31,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,883.28 : 71,791.56 = 21,214.76 : x
  2. Step 2: Convert to fraction form
    47,883.28/71,791.56 = 21,214.76/x
  3. Step 3: Cross multiply
    47,883.28x = 71,791.56 × 21,214.76
  4. Step 4: Simplify right side
    47,883.28x = 1,523,040,715.43
  5. Step 5: Solve for x
    x = 1,523,040,715.43/47,883.28
  6. Step 6: Final answer
    x = 31,807.36

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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.