Home / 21,742.74-32,623.40-9,268.64

Finding the Fourth Proportional to 21,742.74, 32,623.40 and 9,268.64

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Solution

The fourth proportional to 21,742.74, 32,623.40 and 9,268.64 is: 13,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,742.74 : 32,623.40 = 9,268.64 : x
  2. Step 2: Convert to fraction form
    21,742.74/32,623.40 = 9,268.64/x
  3. Step 3: Cross multiply
    21,742.74x = 32,623.40 × 9,268.64
  4. Step 4: Simplify right side
    21,742.74x = 302,374,513.27
  5. Step 5: Solve for x
    x = 302,374,513.27/21,742.74
  6. Step 6: Final answer
    x = 13,906.92

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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.