Home / 39,947.76-59,921.71-31,993.12

Finding the Fourth Proportional to 39,947.76, 59,921.71 and 31,993.12

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Solution

The fourth proportional to 39,947.76, 59,921.71 and 31,993.12 is: 47,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,947.76 : 59,921.71 = 31,993.12 : x
  2. Step 2: Convert to fraction form
    39,947.76/59,921.71 = 31,993.12/x
  3. Step 3: Cross multiply
    39,947.76x = 59,921.71 × 31,993.12
  4. Step 4: Simplify right side
    39,947.76x = 1,917,082,810.50
  5. Step 5: Solve for x
    x = 1,917,082,810.50/39,947.76
  6. Step 6: Final answer
    x = 47,989.74

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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.