Home / 27,796.50-38,359.17-15,221.28

Finding the Fourth Proportional to 27,796.50, 38,359.17 and 15,221.28

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Solution

The fourth proportional to 27,796.50, 38,359.17 and 15,221.28 is: 21,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,796.50 : 38,359.17 = 15,221.28 : x
  2. Step 2: Convert to fraction form
    27,796.50/38,359.17 = 15,221.28/x
  3. Step 3: Cross multiply
    27,796.50x = 38,359.17 × 15,221.28
  4. Step 4: Simplify right side
    27,796.50x = 583,875,667.14
  5. Step 5: Solve for x
    x = 583,875,667.14/27,796.50
  6. Step 6: Final answer
    x = 21,005.37

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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.