Home / 20,582.47-30,867.58-8,736.09

Finding the Fourth Proportional to 20,582.47, 30,867.58 and 8,736.09

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Solution

The fourth proportional to 20,582.47, 30,867.58 and 8,736.09 is: 13,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.47 : 30,867.58 = 8,736.09 : x
  2. Step 2: Convert to fraction form
    20,582.47/30,867.58 = 8,736.09/x
  3. Step 3: Cross multiply
    20,582.47x = 30,867.58 × 8,736.09
  4. Step 4: Simplify right side
    20,582.47x = 269,661,852.13
  5. Step 5: Solve for x
    x = 269,661,852.13/20,582.47
  6. Step 6: Final answer
    x = 13,101.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.