Home / 28,739.28-39,660.21-15,993.63

Finding the Fourth Proportional to 28,739.28, 39,660.21 and 15,993.63

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Solution

The fourth proportional to 28,739.28, 39,660.21 and 15,993.63 is: 22,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.28 : 39,660.21 = 15,993.63 : x
  2. Step 2: Convert to fraction form
    28,739.28/39,660.21 = 15,993.63/x
  3. Step 3: Cross multiply
    28,739.28x = 39,660.21 × 15,993.63
  4. Step 4: Simplify right side
    28,739.28x = 634,310,724.46
  5. Step 5: Solve for x
    x = 634,310,724.46/28,739.28
  6. Step 6: Final answer
    x = 22,071.21

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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.