Home / 21,253.03-31,883.00-6,458.48

Finding the Fourth Proportional to 21,253.03, 31,883.00 and 6,458.48

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Solution

The fourth proportional to 21,253.03, 31,883.00 and 6,458.48 is: 9,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.03 : 31,883.00 = 6,458.48 : x
  2. Step 2: Convert to fraction form
    21,253.03/31,883.00 = 6,458.48/x
  3. Step 3: Cross multiply
    21,253.03x = 31,883.00 × 6,458.48
  4. Step 4: Simplify right side
    21,253.03x = 205,915,857.96
  5. Step 5: Solve for x
    x = 205,915,857.96/21,253.03
  6. Step 6: Final answer
    x = 9,688.78

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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.