Home / 21,768.23-32,664.65-9,287.08

Finding the Fourth Proportional to 21,768.23, 32,664.65 and 9,287.08

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Solution

The fourth proportional to 21,768.23, 32,664.65 and 9,287.08 is: 13,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.23 : 32,664.65 = 9,287.08 : x
  2. Step 2: Convert to fraction form
    21,768.23/32,664.65 = 9,287.08/x
  3. Step 3: Cross multiply
    21,768.23x = 32,664.65 × 9,287.08
  4. Step 4: Simplify right side
    21,768.23x = 303,359,217.72
  5. Step 5: Solve for x
    x = 303,359,217.72/21,768.23
  6. Step 6: Final answer
    x = 13,935.87

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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.