Home / 20,009.36-27,615.06-11,511.86

Finding the Fourth Proportional to 20,009.36, 27,615.06 and 11,511.86

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Solution

The fourth proportional to 20,009.36, 27,615.06 and 11,511.86 is: 15,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.36 : 27,615.06 = 11,511.86 : x
  2. Step 2: Convert to fraction form
    20,009.36/27,615.06 = 11,511.86/x
  3. Step 3: Cross multiply
    20,009.36x = 27,615.06 × 11,511.86
  4. Step 4: Simplify right side
    20,009.36x = 317,900,566.54
  5. Step 5: Solve for x
    x = 317,900,566.54/20,009.36
  6. Step 6: Final answer
    x = 15,887.59

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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.