Home / 21,089.06-31,639.08-6,297.98

Finding the Fourth Proportional to 21,089.06, 31,639.08 and 6,297.98

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Solution

The fourth proportional to 21,089.06, 31,639.08 and 6,297.98 is: 9,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.06 : 31,639.08 = 6,297.98 : x
  2. Step 2: Convert to fraction form
    21,089.06/31,639.08 = 6,297.98/x
  3. Step 3: Cross multiply
    21,089.06x = 31,639.08 × 6,297.98
  4. Step 4: Simplify right side
    21,089.06x = 199,262,293.06
  5. Step 5: Solve for x
    x = 199,262,293.06/21,089.06
  6. Step 6: Final answer
    x = 9,448.61

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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.