Home / 27,137.60-40,636.30-18,730.06

Finding the Fourth Proportional to 27,137.60, 40,636.30 and 18,730.06

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Solution

The fourth proportional to 27,137.60, 40,636.30 and 18,730.06 is: 28,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,137.60 : 40,636.30 = 18,730.06 : x
  2. Step 2: Convert to fraction form
    27,137.60/40,636.30 = 18,730.06/x
  3. Step 3: Cross multiply
    27,137.60x = 40,636.30 × 18,730.06
  4. Step 4: Simplify right side
    27,137.60x = 761,120,040.35
  5. Step 5: Solve for x
    x = 761,120,040.35/27,137.60
  6. Step 6: Final answer
    x = 28,046.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.