Home / 27,380.50-37,784.24-15,443.66

Finding the Fourth Proportional to 27,380.50, 37,784.24 and 15,443.66

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Solution

The fourth proportional to 27,380.50, 37,784.24 and 15,443.66 is: 21,311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.50 : 37,784.24 = 15,443.66 : x
  2. Step 2: Convert to fraction form
    27,380.50/37,784.24 = 15,443.66/x
  3. Step 3: Cross multiply
    27,380.50x = 37,784.24 × 15,443.66
  4. Step 4: Simplify right side
    27,380.50x = 583,527,031.07
  5. Step 5: Solve for x
    x = 583,527,031.07/27,380.50
  6. Step 6: Final answer
    x = 21,311.78

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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.