Home / 20,582.48-28,404.39-11,629.81

Finding the Fourth Proportional to 20,582.48, 28,404.39 and 11,629.81

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Solution

The fourth proportional to 20,582.48, 28,404.39 and 11,629.81 is: 16,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.48 : 28,404.39 = 11,629.81 : x
  2. Step 2: Convert to fraction form
    20,582.48/28,404.39 = 11,629.81/x
  3. Step 3: Cross multiply
    20,582.48x = 28,404.39 × 11,629.81
  4. Step 4: Simplify right side
    20,582.48x = 330,337,458.69
  5. Step 5: Solve for x
    x = 330,337,458.69/20,582.48
  6. Step 6: Final answer
    x = 16,049.45

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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.