Home / 21,200.73-31,802.22-6,409.27

Finding the Fourth Proportional to 21,200.73, 31,802.22 and 6,409.27

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Solution

The fourth proportional to 21,200.73, 31,802.22 and 6,409.27 is: 9,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.73 : 31,802.22 = 6,409.27 : x
  2. Step 2: Convert to fraction form
    21,200.73/31,802.22 = 6,409.27/x
  3. Step 3: Cross multiply
    21,200.73x = 31,802.22 × 6,409.27
  4. Step 4: Simplify right side
    21,200.73x = 203,829,014.58
  5. Step 5: Solve for x
    x = 203,829,014.58/21,200.73
  6. Step 6: Final answer
    x = 9,614.25

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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.