Home / 19,285.72-28,944.99-13,752.61

Finding the Fourth Proportional to 19,285.72, 28,944.99 and 13,752.61

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Solution

The fourth proportional to 19,285.72, 28,944.99 and 13,752.61 is: 20,640.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.72 : 28,944.99 = 13,752.61 : x
  2. Step 2: Convert to fraction form
    19,285.72/28,944.99 = 13,752.61/x
  3. Step 3: Cross multiply
    19,285.72x = 28,944.99 × 13,752.61
  4. Step 4: Simplify right side
    19,285.72x = 398,069,086.56
  5. Step 5: Solve for x
    x = 398,069,086.56/19,285.72
  6. Step 6: Final answer
    x = 20,640.62

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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.