Home / 20,530.99-28,299.40-16,046.83

Finding the Fourth Proportional to 20,530.99, 28,299.40 and 16,046.83

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Solution

The fourth proportional to 20,530.99, 28,299.40 and 16,046.83 is: 22,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.99 : 28,299.40 = 16,046.83 : x
  2. Step 2: Convert to fraction form
    20,530.99/28,299.40 = 16,046.83/x
  3. Step 3: Cross multiply
    20,530.99x = 28,299.40 × 16,046.83
  4. Step 4: Simplify right side
    20,530.99x = 454,115,660.90
  5. Step 5: Solve for x
    x = 454,115,660.90/20,530.99
  6. Step 6: Final answer
    x = 22,118.55

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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.