Home / 27,765.38-38,317.14-15,828.50

Finding the Fourth Proportional to 27,765.38, 38,317.14 and 15,828.50

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Solution

The fourth proportional to 27,765.38, 38,317.14 and 15,828.50 is: 21,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.38 : 38,317.14 = 15,828.50 : x
  2. Step 2: Convert to fraction form
    27,765.38/38,317.14 = 15,828.50/x
  3. Step 3: Cross multiply
    27,765.38x = 38,317.14 × 15,828.50
  4. Step 4: Simplify right side
    27,765.38x = 606,502,850.49
  5. Step 5: Solve for x
    x = 606,502,850.49/27,765.38
  6. Step 6: Final answer
    x = 21,843.85

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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.