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Finding the Fourth Proportional to 21,992.73, 32,989.10 and 7,201.73

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Solution

The fourth proportional to 21,992.73, 32,989.10 and 7,201.73 is: 10,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.73 : 32,989.10 = 7,201.73 : x
  2. Step 2: Convert to fraction form
    21,992.73/32,989.10 = 7,201.73/x
  3. Step 3: Cross multiply
    21,992.73x = 32,989.10 × 7,201.73
  4. Step 4: Simplify right side
    21,992.73x = 237,578,390.19
  5. Step 5: Solve for x
    x = 237,578,390.19/21,992.73
  6. Step 6: Final answer
    x = 10,802.59

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1.5x scale

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.