Home / 21,269.30-31,908.56-6,477.83

Finding the Fourth Proportional to 21,269.30, 31,908.56 and 6,477.83

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Solution

The fourth proportional to 21,269.30, 31,908.56 and 6,477.83 is: 9,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.30 : 31,908.56 = 6,477.83 : x
  2. Step 2: Convert to fraction form
    21,269.30/31,908.56 = 6,477.83/x
  3. Step 3: Cross multiply
    21,269.30x = 31,908.56 × 6,477.83
  4. Step 4: Simplify right side
    21,269.30x = 206,698,035.29
  5. Step 5: Solve for x
    x = 206,698,035.29/21,269.30
  6. Step 6: Final answer
    x = 9,718.14

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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.