Home / 20,523.08-30,786.37-6,479.35

Finding the Fourth Proportional to 20,523.08, 30,786.37 and 6,479.35

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Solution

The fourth proportional to 20,523.08, 30,786.37 and 6,479.35 is: 9,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.08 : 30,786.37 = 6,479.35 : x
  2. Step 2: Convert to fraction form
    20,523.08/30,786.37 = 6,479.35/x
  3. Step 3: Cross multiply
    20,523.08x = 30,786.37 × 6,479.35
  4. Step 4: Simplify right side
    20,523.08x = 199,475,634.06
  5. Step 5: Solve for x
    x = 199,475,634.06/20,523.08
  6. Step 6: Final answer
    x = 9,719.58

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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.