Home / 28,771.16-39,697.28-16,195.90

Finding the Fourth Proportional to 28,771.16, 39,697.28 and 16,195.90

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Solution

The fourth proportional to 28,771.16, 39,697.28 and 16,195.90 is: 22,346.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.16 : 39,697.28 = 16,195.90 : x
  2. Step 2: Convert to fraction form
    28,771.16/39,697.28 = 16,195.90/x
  3. Step 3: Cross multiply
    28,771.16x = 39,697.28 × 16,195.90
  4. Step 4: Simplify right side
    28,771.16x = 642,933,177.15
  5. Step 5: Solve for x
    x = 642,933,177.15/28,771.16
  6. Step 6: Final answer
    x = 22,346.45

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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.