Home / 39,912.71-59,878.44-13,617.54

Finding the Fourth Proportional to 39,912.71, 59,878.44 and 13,617.54

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Solution

The fourth proportional to 39,912.71, 59,878.44 and 13,617.54 is: 20,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.71 : 59,878.44 = 13,617.54 : x
  2. Step 2: Convert to fraction form
    39,912.71/59,878.44 = 13,617.54/x
  3. Step 3: Cross multiply
    39,912.71x = 59,878.44 × 13,617.54
  4. Step 4: Simplify right side
    39,912.71x = 815,397,051.84
  5. Step 5: Solve for x
    x = 815,397,051.84/39,912.71
  6. Step 6: Final answer
    x = 20,429.51

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1.5x scale

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.