Home / 27,259.87-37,620.84-15,778.66

Finding the Fourth Proportional to 27,259.87, 37,620.84 and 15,778.66

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Solution

The fourth proportional to 27,259.87, 37,620.84 and 15,778.66 is: 21,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,259.87 : 37,620.84 = 15,778.66 : x
  2. Step 2: Convert to fraction form
    27,259.87/37,620.84 = 15,778.66/x
  3. Step 3: Cross multiply
    27,259.87x = 37,620.84 × 15,778.66
  4. Step 4: Simplify right side
    27,259.87x = 593,606,443.27
  5. Step 5: Solve for x
    x = 593,606,443.27/27,259.87
  6. Step 6: Final answer
    x = 21,775.84

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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.