Home / 27,705.20-41,564.04-12,124.40

Finding the Fourth Proportional to 27,705.20, 41,564.04 and 12,124.40

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Solution

The fourth proportional to 27,705.20, 41,564.04 and 12,124.40 is: 18,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.20 : 41,564.04 = 12,124.40 : x
  2. Step 2: Convert to fraction form
    27,705.20/41,564.04 = 12,124.40/x
  3. Step 3: Cross multiply
    27,705.20x = 41,564.04 × 12,124.40
  4. Step 4: Simplify right side
    27,705.20x = 503,939,046.58
  5. Step 5: Solve for x
    x = 503,939,046.58/27,705.20
  6. Step 6: Final answer
    x = 18,189.33

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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.