Home / 20,705.73-28,566.41-11,748.05

Finding the Fourth Proportional to 20,705.73, 28,566.41 and 11,748.05

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Solution

The fourth proportional to 20,705.73, 28,566.41 and 11,748.05 is: 16,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.73 : 28,566.41 = 11,748.05 : x
  2. Step 2: Convert to fraction form
    20,705.73/28,566.41 = 11,748.05/x
  3. Step 3: Cross multiply
    20,705.73x = 28,566.41 × 11,748.05
  4. Step 4: Simplify right side
    20,705.73x = 335,599,524.81
  5. Step 5: Solve for x
    x = 335,599,524.81/20,705.73
  6. Step 6: Final answer
    x = 16,208.05

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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.