Home / 39,921.85-59,893.71-31,629.61

Finding the Fourth Proportional to 39,921.85, 59,893.71 and 31,629.61

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Solution

The fourth proportional to 39,921.85, 59,893.71 and 31,629.61 is: 47,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.85 : 59,893.71 = 31,629.61 : x
  2. Step 2: Convert to fraction form
    39,921.85/59,893.71 = 31,629.61/x
  3. Step 3: Cross multiply
    39,921.85x = 59,893.71 × 31,629.61
  4. Step 4: Simplify right side
    39,921.85x = 1,894,414,688.75
  5. Step 5: Solve for x
    x = 1,894,414,688.75/39,921.85
  6. Step 6: Final answer
    x = 47,453.08

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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.