Home / 20,299.62-28,014.06-11,101.71

Finding the Fourth Proportional to 20,299.62, 28,014.06 and 11,101.71

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Solution

The fourth proportional to 20,299.62, 28,014.06 and 11,101.71 is: 15,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.62 : 28,014.06 = 11,101.71 : x
  2. Step 2: Convert to fraction form
    20,299.62/28,014.06 = 11,101.71/x
  3. Step 3: Cross multiply
    20,299.62x = 28,014.06 × 11,101.71
  4. Step 4: Simplify right side
    20,299.62x = 311,003,970.04
  5. Step 5: Solve for x
    x = 311,003,970.04/20,299.62
  6. Step 6: Final answer
    x = 15,320.68

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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.