Home / 20,752.37-28,639.07-11,800.68

Finding the Fourth Proportional to 20,752.37, 28,639.07 and 11,800.68

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Solution

The fourth proportional to 20,752.37, 28,639.07 and 11,800.68 is: 16,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.37 : 28,639.07 = 11,800.68 : x
  2. Step 2: Convert to fraction form
    20,752.37/28,639.07 = 11,800.68/x
  3. Step 3: Cross multiply
    20,752.37x = 28,639.07 × 11,800.68
  4. Step 4: Simplify right side
    20,752.37x = 337,960,441.56
  5. Step 5: Solve for x
    x = 337,960,441.56/20,752.37
  6. Step 6: Final answer
    x = 16,285.39

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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.