Home / 28,820.81-39,773.03-16,245.56

Finding the Fourth Proportional to 28,820.81, 39,773.03 and 16,245.56

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Solution

The fourth proportional to 28,820.81, 39,773.03 and 16,245.56 is: 22,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.81 : 39,773.03 = 16,245.56 : x
  2. Step 2: Convert to fraction form
    28,820.81/39,773.03 = 16,245.56/x
  3. Step 3: Cross multiply
    28,820.81x = 39,773.03 × 16,245.56
  4. Step 4: Simplify right side
    28,820.81x = 646,135,163.45
  5. Step 5: Solve for x
    x = 646,135,163.45/28,820.81
  6. Step 6: Final answer
    x = 22,419.05

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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.