Home / 27,761.22-38,288.88-18,190.62

Finding the Fourth Proportional to 27,761.22, 38,288.88 and 18,190.62

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Solution

The fourth proportional to 27,761.22, 38,288.88 and 18,190.62 is: 25,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.22 : 38,288.88 = 18,190.62 : x
  2. Step 2: Convert to fraction form
    27,761.22/38,288.88 = 18,190.62/x
  3. Step 3: Cross multiply
    27,761.22x = 38,288.88 × 18,190.62
  4. Step 4: Simplify right side
    27,761.22x = 696,498,466.31
  5. Step 5: Solve for x
    x = 696,498,466.31/27,761.22
  6. Step 6: Final answer
    x = 25,088.90

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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.