Home / 20,736.22-31,101.27-10,203.44

Finding the Fourth Proportional to 20,736.22, 31,101.27 and 10,203.44

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Solution

The fourth proportional to 20,736.22, 31,101.27 and 10,203.44 is: 15,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.22 : 31,101.27 = 10,203.44 : x
  2. Step 2: Convert to fraction form
    20,736.22/31,101.27 = 10,203.44/x
  3. Step 3: Cross multiply
    20,736.22x = 31,101.27 × 10,203.44
  4. Step 4: Simplify right side
    20,736.22x = 317,339,748.60
  5. Step 5: Solve for x
    x = 317,339,748.60/20,736.22
  6. Step 6: Final answer
    x = 15,303.65

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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.