Home / 21,176.06-31,764.09-6,384.96

Finding the Fourth Proportional to 21,176.06, 31,764.09 and 6,384.96

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Solution

The fourth proportional to 21,176.06, 31,764.09 and 6,384.96 is: 9,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.06 : 31,764.09 = 6,384.96 : x
  2. Step 2: Convert to fraction form
    21,176.06/31,764.09 = 6,384.96/x
  3. Step 3: Cross multiply
    21,176.06x = 31,764.09 × 6,384.96
  4. Step 4: Simplify right side
    21,176.06x = 202,812,444.09
  5. Step 5: Solve for x
    x = 202,812,444.09/21,176.06
  6. Step 6: Final answer
    x = 9,577.44

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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.