Home / 27,800.11-38,354.66-15,854.84

Finding the Fourth Proportional to 27,800.11, 38,354.66 and 15,854.84

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Solution

The fourth proportional to 27,800.11, 38,354.66 and 15,854.84 is: 21,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,800.11 : 38,354.66 = 15,854.84 : x
  2. Step 2: Convert to fraction form
    27,800.11/38,354.66 = 15,854.84/x
  3. Step 3: Cross multiply
    27,800.11x = 38,354.66 × 15,854.84
  4. Step 4: Simplify right side
    27,800.11x = 608,107,018.98
  5. Step 5: Solve for x
    x = 608,107,018.98/27,800.11
  6. Step 6: Final answer
    x = 21,874.27

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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.