Home / 27,939.09-41,909.40-8,218.29

Finding the Fourth Proportional to 27,939.09, 41,909.40 and 8,218.29

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Solution

The fourth proportional to 27,939.09, 41,909.40 and 8,218.29 is: 12,327.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939.09 : 41,909.40 = 8,218.29 : x
  2. Step 2: Convert to fraction form
    27,939.09/41,909.40 = 8,218.29/x
  3. Step 3: Cross multiply
    27,939.09x = 41,909.40 × 8,218.29
  4. Step 4: Simplify right side
    27,939.09x = 344,423,602.93
  5. Step 5: Solve for x
    x = 344,423,602.93/27,939.09
  6. Step 6: Final answer
    x = 12,327.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.