Home / 20,180.98-27,848.91-11,228.86

Finding the Fourth Proportional to 20,180.98, 27,848.91 and 11,228.86

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Solution

The fourth proportional to 20,180.98, 27,848.91 and 11,228.86 is: 15,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.98 : 27,848.91 = 11,228.86 : x
  2. Step 2: Convert to fraction form
    20,180.98/27,848.91 = 11,228.86/x
  3. Step 3: Cross multiply
    20,180.98x = 27,848.91 × 11,228.86
  4. Step 4: Simplify right side
    20,180.98x = 312,711,511.54
  5. Step 5: Solve for x
    x = 312,711,511.54/20,180.98
  6. Step 6: Final answer
    x = 15,495.36

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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.