Home / 21,396.96-32,099.04-8,923.68

Finding the Fourth Proportional to 21,396.96, 32,099.04 and 8,923.68

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Solution

The fourth proportional to 21,396.96, 32,099.04 and 8,923.68 is: 13,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.96 : 32,099.04 = 8,923.68 : x
  2. Step 2: Convert to fraction form
    21,396.96/32,099.04 = 8,923.68/x
  3. Step 3: Cross multiply
    21,396.96x = 32,099.04 × 8,923.68
  4. Step 4: Simplify right side
    21,396.96x = 286,441,561.27
  5. Step 5: Solve for x
    x = 286,441,561.27/21,396.96
  6. Step 6: Final answer
    x = 13,387.02

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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.