Home / 21,324.41-31,988.67-6,530.73

Finding the Fourth Proportional to 21,324.41, 31,988.67 and 6,530.73

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Solution

The fourth proportional to 21,324.41, 31,988.67 and 6,530.73 is: 9,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.41 : 31,988.67 = 6,530.73 : x
  2. Step 2: Convert to fraction form
    21,324.41/31,988.67 = 6,530.73/x
  3. Step 3: Cross multiply
    21,324.41x = 31,988.67 × 6,530.73
  4. Step 4: Simplify right side
    21,324.41x = 208,909,259.12
  5. Step 5: Solve for x
    x = 208,909,259.12/21,324.41
  6. Step 6: Final answer
    x = 9,796.72

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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.