Home / 28,738.96-39,659.79-15,993.30

Finding the Fourth Proportional to 28,738.96, 39,659.79 and 15,993.30

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Solution

The fourth proportional to 28,738.96, 39,659.79 and 15,993.30 is: 22,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.96 : 39,659.79 = 15,993.30 : x
  2. Step 2: Convert to fraction form
    28,738.96/39,659.79 = 15,993.30/x
  3. Step 3: Cross multiply
    28,738.96x = 39,659.79 × 15,993.30
  4. Step 4: Simplify right side
    28,738.96x = 634,290,919.41
  5. Step 5: Solve for x
    x = 634,290,919.41/28,738.96
  6. Step 6: Final answer
    x = 22,070.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.