Home / 27,936.12-38,550.87-15,360.78

Finding the Fourth Proportional to 27,936.12, 38,550.87 and 15,360.78

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Solution

The fourth proportional to 27,936.12, 38,550.87 and 15,360.78 is: 21,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936.12 : 38,550.87 = 15,360.78 : x
  2. Step 2: Convert to fraction form
    27,936.12/38,550.87 = 15,360.78/x
  3. Step 3: Cross multiply
    27,936.12x = 38,550.87 × 15,360.78
  4. Step 4: Simplify right side
    27,936.12x = 592,171,432.88
  5. Step 5: Solve for x
    x = 592,171,432.88/27,936.12
  6. Step 6: Final answer
    x = 21,197.34

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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.