Home / 21,088.61-31,631.82-6,297.65

Finding the Fourth Proportional to 21,088.61, 31,631.82 and 6,297.65

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Solution

The fourth proportional to 21,088.61, 31,631.82 and 6,297.65 is: 9,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.61 : 31,631.82 = 6,297.65 : x
  2. Step 2: Convert to fraction form
    21,088.61/31,631.82 = 6,297.65/x
  3. Step 3: Cross multiply
    21,088.61x = 31,631.82 × 6,297.65
  4. Step 4: Simplify right side
    21,088.61x = 199,206,131.22
  5. Step 5: Solve for x
    x = 199,206,131.22/21,088.61
  6. Step 6: Final answer
    x = 9,446.15

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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.