Home / 21,724.12-32,588.61-6,142.96

Finding the Fourth Proportional to 21,724.12, 32,588.61 and 6,142.96

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Solution

The fourth proportional to 21,724.12, 32,588.61 and 6,142.96 is: 9,215.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.12 : 32,588.61 = 6,142.96 : x
  2. Step 2: Convert to fraction form
    21,724.12/32,588.61 = 6,142.96/x
  3. Step 3: Cross multiply
    21,724.12x = 32,588.61 × 6,142.96
  4. Step 4: Simplify right side
    21,724.12x = 200,190,527.69
  5. Step 5: Solve for x
    x = 200,190,527.69/21,724.12
  6. Step 6: Final answer
    x = 9,215.13

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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.