Home / 28,086.68-38,777.84-17,480.60

Finding the Fourth Proportional to 28,086.68, 38,777.84 and 17,480.60

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Solution

The fourth proportional to 28,086.68, 38,777.84 and 17,480.60 is: 24,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.68 : 38,777.84 = 17,480.60 : x
  2. Step 2: Convert to fraction form
    28,086.68/38,777.84 = 17,480.60/x
  3. Step 3: Cross multiply
    28,086.68x = 38,777.84 × 17,480.60
  4. Step 4: Simplify right side
    28,086.68x = 677,859,909.90
  5. Step 5: Solve for x
    x = 677,859,909.90/28,086.68
  6. Step 6: Final answer
    x = 24,134.57

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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.