Home / 28,724.15-43,086.20-15,659.53

Finding the Fourth Proportional to 28,724.15, 43,086.20 and 15,659.53

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Solution

The fourth proportional to 28,724.15, 43,086.20 and 15,659.53 is: 23,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.15 : 43,086.20 = 15,659.53 : x
  2. Step 2: Convert to fraction form
    28,724.15/43,086.20 = 15,659.53/x
  3. Step 3: Cross multiply
    28,724.15x = 43,086.20 × 15,659.53
  4. Step 4: Simplify right side
    28,724.15x = 674,709,455.47
  5. Step 5: Solve for x
    x = 674,709,455.47/28,724.15
  6. Step 6: Final answer
    x = 23,489.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.