Home / 27,703.24-38,234.87-15,770.42

Finding the Fourth Proportional to 27,703.24, 38,234.87 and 15,770.42

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Solution

The fourth proportional to 27,703.24, 38,234.87 and 15,770.42 is: 21,765.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,703.24 : 38,234.87 = 15,770.42 : x
  2. Step 2: Convert to fraction form
    27,703.24/38,234.87 = 15,770.42/x
  3. Step 3: Cross multiply
    27,703.24x = 38,234.87 × 15,770.42
  4. Step 4: Simplify right side
    27,703.24x = 602,979,879.69
  5. Step 5: Solve for x
    x = 602,979,879.69/27,703.24
  6. Step 6: Final answer
    x = 21,765.68

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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.