Home / 20,994.06-28,972.47-11,562.96

Finding the Fourth Proportional to 20,994.06, 28,972.47 and 11,562.96

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Solution

The fourth proportional to 20,994.06, 28,972.47 and 11,562.96 is: 15,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.06 : 28,972.47 = 11,562.96 : x
  2. Step 2: Convert to fraction form
    20,994.06/28,972.47 = 11,562.96/x
  3. Step 3: Cross multiply
    20,994.06x = 28,972.47 × 11,562.96
  4. Step 4: Simplify right side
    20,994.06x = 335,007,511.71
  5. Step 5: Solve for x
    x = 335,007,511.71/20,994.06
  6. Step 6: Final answer
    x = 15,957.25

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Why These Related Problems?

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