Home / 21,162.98-31,748.66-6,371.16

Finding the Fourth Proportional to 21,162.98, 31,748.66 and 6,371.16

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Solution

The fourth proportional to 21,162.98, 31,748.66 and 6,371.16 is: 9,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.98 : 31,748.66 = 6,371.16 : x
  2. Step 2: Convert to fraction form
    21,162.98/31,748.66 = 6,371.16/x
  3. Step 3: Cross multiply
    21,162.98x = 31,748.66 × 6,371.16
  4. Step 4: Simplify right side
    21,162.98x = 202,275,792.65
  5. Step 5: Solve for x
    x = 202,275,792.65/21,162.98
  6. Step 6: Final answer
    x = 9,558.00

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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.