Home / 39,990.58-59,965.73-13,327.12

Finding the Fourth Proportional to 39,990.58, 59,965.73 and 13,327.12

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Solution

The fourth proportional to 39,990.58, 59,965.73 and 13,327.12 is: 19,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.58 : 59,965.73 = 13,327.12 : x
  2. Step 2: Convert to fraction form
    39,990.58/59,965.73 = 13,327.12/x
  3. Step 3: Cross multiply
    39,990.58x = 59,965.73 × 13,327.12
  4. Step 4: Simplify right side
    39,990.58x = 799,170,479.60
  5. Step 5: Solve for x
    x = 799,170,479.60/39,990.58
  6. Step 6: Final answer
    x = 19,983.97

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Similar ratio
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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.