Home / 21,063.82-31,615.17-10,682.86

Finding the Fourth Proportional to 21,063.82, 31,615.17 and 10,682.86

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Solution

The fourth proportional to 21,063.82, 31,615.17 and 10,682.86 is: 16,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.82 : 31,615.17 = 10,682.86 : x
  2. Step 2: Convert to fraction form
    21,063.82/31,615.17 = 10,682.86/x
  3. Step 3: Cross multiply
    21,063.82x = 31,615.17 × 10,682.86
  4. Step 4: Simplify right side
    21,063.82x = 337,740,434.99
  5. Step 5: Solve for x
    x = 337,740,434.99/21,063.82
  6. Step 6: Final answer
    x = 16,034.15

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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.