Home / 20,262.48-27,959.32-11,308.72

Finding the Fourth Proportional to 20,262.48, 27,959.32 and 11,308.72

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Solution

The fourth proportional to 20,262.48, 27,959.32 and 11,308.72 is: 15,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.48 : 27,959.32 = 11,308.72 : x
  2. Step 2: Convert to fraction form
    20,262.48/27,959.32 = 11,308.72/x
  3. Step 3: Cross multiply
    20,262.48x = 27,959.32 × 11,308.72
  4. Step 4: Simplify right side
    20,262.48x = 316,184,121.27
  5. Step 5: Solve for x
    x = 316,184,121.27/20,262.48
  6. Step 6: Final answer
    x = 15,604.41

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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.