Home / 27,511.30-37,983.23-18,911.78

Finding the Fourth Proportional to 27,511.30, 37,983.23 and 18,911.78

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Solution

The fourth proportional to 27,511.30, 37,983.23 and 18,911.78 is: 26,110.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,511.30 : 37,983.23 = 18,911.78 : x
  2. Step 2: Convert to fraction form
    27,511.30/37,983.23 = 18,911.78/x
  3. Step 3: Cross multiply
    27,511.30x = 37,983.23 × 18,911.78
  4. Step 4: Simplify right side
    27,511.30x = 718,330,489.45
  5. Step 5: Solve for x
    x = 718,330,489.45/27,511.30
  6. Step 6: Final answer
    x = 26,110.38

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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.