Home / 28,635.19-42,906.61-15,493.75

Finding the Fourth Proportional to 28,635.19, 42,906.61 and 15,493.75

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Solution

The fourth proportional to 28,635.19, 42,906.61 and 15,493.75 is: 23,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.19 : 42,906.61 = 15,493.75 : x
  2. Step 2: Convert to fraction form
    28,635.19/42,906.61 = 15,493.75/x
  3. Step 3: Cross multiply
    28,635.19x = 42,906.61 × 15,493.75
  4. Step 4: Simplify right side
    28,635.19x = 664,784,288.69
  5. Step 5: Solve for x
    x = 664,784,288.69/28,635.19
  6. Step 6: Final answer
    x = 23,215.64

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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.