Home / 30,218.10-41,701.20-16,789.56

Finding the Fourth Proportional to 30,218.10, 41,701.20 and 16,789.56

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Solution

The fourth proportional to 30,218.10, 41,701.20 and 16,789.56 is: 23,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.10 : 41,701.20 = 16,789.56 : x
  2. Step 2: Convert to fraction form
    30,218.10/41,701.20 = 16,789.56/x
  3. Step 3: Cross multiply
    30,218.10x = 41,701.20 × 16,789.56
  4. Step 4: Simplify right side
    30,218.10x = 700,144,799.47
  5. Step 5: Solve for x
    x = 700,144,799.47/30,218.10
  6. Step 6: Final answer
    x = 23,169.72

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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.