Home / 27,380.88-37,783.34-15,447.14

Finding the Fourth Proportional to 27,380.88, 37,783.34 and 15,447.14

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Solution

The fourth proportional to 27,380.88, 37,783.34 and 15,447.14 is: 21,315.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.88 : 37,783.34 = 15,447.14 : x
  2. Step 2: Convert to fraction form
    27,380.88/37,783.34 = 15,447.14/x
  3. Step 3: Cross multiply
    27,380.88x = 37,783.34 × 15,447.14
  4. Step 4: Simplify right side
    27,380.88x = 583,644,542.65
  5. Step 5: Solve for x
    x = 583,644,542.65/27,380.88
  6. Step 6: Final answer
    x = 21,315.77

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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.