Home / 21,944.16-30,287.52-20,172.96

Finding the Fourth Proportional to 21,944.16, 30,287.52 and 20,172.96

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Solution

The fourth proportional to 21,944.16, 30,287.52 and 20,172.96 is: 27,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.16 : 30,287.52 = 20,172.96 : x
  2. Step 2: Convert to fraction form
    21,944.16/30,287.52 = 20,172.96/x
  3. Step 3: Cross multiply
    21,944.16x = 30,287.52 × 20,172.96
  4. Step 4: Simplify right side
    21,944.16x = 610,988,929.46
  5. Step 5: Solve for x
    x = 610,988,929.46/21,944.16
  6. Step 6: Final answer
    x = 27,842.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.