Home / 39,947.75-59,921.64-13,652.72

Finding the Fourth Proportional to 39,947.75, 59,921.64 and 13,652.72

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Solution

The fourth proportional to 39,947.75, 59,921.64 and 13,652.72 is: 20,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,947.75 : 59,921.64 = 13,652.72 : x
  2. Step 2: Convert to fraction form
    39,947.75/59,921.64 = 13,652.72/x
  3. Step 3: Cross multiply
    39,947.75x = 59,921.64 × 13,652.72
  4. Step 4: Simplify right side
    39,947.75x = 818,093,372.86
  5. Step 5: Solve for x
    x = 818,093,372.86/39,947.75
  6. Step 6: Final answer
    x = 20,479.09

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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.