Home / 27,731.86-38,288.44-16,404.99

Finding the Fourth Proportional to 27,731.86, 38,288.44 and 16,404.99

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Solution

The fourth proportional to 27,731.86, 38,288.44 and 16,404.99 is: 22,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,731.86 : 38,288.44 = 16,404.99 : x
  2. Step 2: Convert to fraction form
    27,731.86/38,288.44 = 16,404.99/x
  3. Step 3: Cross multiply
    27,731.86x = 38,288.44 × 16,404.99
  4. Step 4: Simplify right side
    27,731.86x = 628,121,434.30
  5. Step 5: Solve for x
    x = 628,121,434.30/27,731.86
  6. Step 6: Final answer
    x = 22,649.81

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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.