Home / 27,906.69-38,511.12-15,159.77

Finding the Fourth Proportional to 27,906.69, 38,511.12 and 15,159.77

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Solution

The fourth proportional to 27,906.69, 38,511.12 and 15,159.77 is: 20,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.69 : 38,511.12 = 15,159.77 : x
  2. Step 2: Convert to fraction form
    27,906.69/38,511.12 = 15,159.77/x
  3. Step 3: Cross multiply
    27,906.69x = 38,511.12 × 15,159.77
  4. Step 4: Simplify right side
    27,906.69x = 583,819,721.64
  5. Step 5: Solve for x
    x = 583,819,721.64/27,906.69
  6. Step 6: Final answer
    x = 20,920.42

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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.