Home / 19,901.70-27,464.15-10,949.21

Finding the Fourth Proportional to 19,901.70, 27,464.15 and 10,949.21

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Solution

The fourth proportional to 19,901.70, 27,464.15 and 10,949.21 is: 15,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.70 : 27,464.15 = 10,949.21 : x
  2. Step 2: Convert to fraction form
    19,901.70/27,464.15 = 10,949.21/x
  3. Step 3: Cross multiply
    19,901.70x = 27,464.15 × 10,949.21
  4. Step 4: Simplify right side
    19,901.70x = 300,710,553.75
  5. Step 5: Solve for x
    x = 300,710,553.75/19,901.70
  6. Step 6: Final answer
    x = 15,109.79

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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.