Home / 21,008.82-31,513.14-6,217.83

Finding the Fourth Proportional to 21,008.82, 31,513.14 and 6,217.83

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Solution

The fourth proportional to 21,008.82, 31,513.14 and 6,217.83 is: 9,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008.82 : 31,513.14 = 6,217.83 : x
  2. Step 2: Convert to fraction form
    21,008.82/31,513.14 = 6,217.83/x
  3. Step 3: Cross multiply
    21,008.82x = 31,513.14 × 6,217.83
  4. Step 4: Simplify right side
    21,008.82x = 195,943,347.29
  5. Step 5: Solve for x
    x = 195,943,347.29/21,008.82
  6. Step 6: Final answer
    x = 9,326.72

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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.