Home / 20,264.34-27,959.86-11,879.22

Finding the Fourth Proportional to 20,264.34, 27,959.86 and 11,879.22

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Solution

The fourth proportional to 20,264.34, 27,959.86 and 11,879.22 is: 16,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.34 : 27,959.86 = 11,879.22 : x
  2. Step 2: Convert to fraction form
    20,264.34/27,959.86 = 11,879.22/x
  3. Step 3: Cross multiply
    20,264.34x = 27,959.86 × 11,879.22
  4. Step 4: Simplify right side
    20,264.34x = 332,141,328.11
  5. Step 5: Solve for x
    x = 332,141,328.11/20,264.34
  6. Step 6: Final answer
    x = 16,390.43

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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.