Home / 20,221.24-30,275.88-10,339.24

Finding the Fourth Proportional to 20,221.24, 30,275.88 and 10,339.24

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Solution

The fourth proportional to 20,221.24, 30,275.88 and 10,339.24 is: 15,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.24 : 30,275.88 = 10,339.24 : x
  2. Step 2: Convert to fraction form
    20,221.24/30,275.88 = 10,339.24/x
  3. Step 3: Cross multiply
    20,221.24x = 30,275.88 × 10,339.24
  4. Step 4: Simplify right side
    20,221.24x = 313,029,589.53
  5. Step 5: Solve for x
    x = 313,029,589.53/20,221.24
  6. Step 6: Final answer
    x = 15,480.24

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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.