Home / 27,911.25-38,518.20-15,336

Finding the Fourth Proportional to 27,911.25, 38,518.20 and 15,336

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Solution

The fourth proportional to 27,911.25, 38,518.20 and 15,336 is: 21,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,911.25 : 38,518.20 = 15,336 : x
  2. Step 2: Convert to fraction form
    27,911.25/38,518.20 = 15,336/x
  3. Step 3: Cross multiply
    27,911.25x = 38,518.20 × 15,336
  4. Step 4: Simplify right side
    27,911.25x = 590,715,115.20
  5. Step 5: Solve for x
    x = 590,715,115.20/27,911.25
  6. Step 6: Final answer
    x = 21,164.05

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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.