Home / 19,774.88-27,299.20-15,288.48

Finding the Fourth Proportional to 19,774.88, 27,299.20 and 15,288.48

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Solution

The fourth proportional to 19,774.88, 27,299.20 and 15,288.48 is: 21,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.88 : 27,299.20 = 15,288.48 : x
  2. Step 2: Convert to fraction form
    19,774.88/27,299.20 = 15,288.48/x
  3. Step 3: Cross multiply
    19,774.88x = 27,299.20 × 15,288.48
  4. Step 4: Simplify right side
    19,774.88x = 417,363,273.22
  5. Step 5: Solve for x
    x = 417,363,273.22/19,774.88
  6. Step 6: Final answer
    x = 21,105.73

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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.