Home / 20,448.69-28,216.68-11,836.35

Finding the Fourth Proportional to 20,448.69, 28,216.68 and 11,836.35

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Solution

The fourth proportional to 20,448.69, 28,216.68 and 11,836.35 is: 16,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.69 : 28,216.68 = 11,836.35 : x
  2. Step 2: Convert to fraction form
    20,448.69/28,216.68 = 11,836.35/x
  3. Step 3: Cross multiply
    20,448.69x = 28,216.68 × 11,836.35
  4. Step 4: Simplify right side
    20,448.69x = 333,982,500.32
  5. Step 5: Solve for x
    x = 333,982,500.32/20,448.69
  6. Step 6: Final answer
    x = 16,332.71

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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.