Home / 20,994.41-28,973.60-11,562.97

Finding the Fourth Proportional to 20,994.41, 28,973.60 and 11,562.97

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Solution

The fourth proportional to 20,994.41, 28,973.60 and 11,562.97 is: 15,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.41 : 28,973.60 = 11,562.97 : x
  2. Step 2: Convert to fraction form
    20,994.41/28,973.60 = 11,562.97/x
  3. Step 3: Cross multiply
    20,994.41x = 28,973.60 × 11,562.97
  4. Step 4: Simplify right side
    20,994.41x = 335,020,867.59
  5. Step 5: Solve for x
    x = 335,020,867.59/20,994.41
  6. Step 6: Final answer
    x = 15,957.62

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1.5x scale

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.