Home / 19,526.88-29,268.72-8,431.68

Finding the Fourth Proportional to 19,526.88, 29,268.72 and 8,431.68

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Solution

The fourth proportional to 19,526.88, 29,268.72 and 8,431.68 is: 12,638.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,526.88 : 29,268.72 = 8,431.68 : x
  2. Step 2: Convert to fraction form
    19,526.88/29,268.72 = 8,431.68/x
  3. Step 3: Cross multiply
    19,526.88x = 29,268.72 × 8,431.68
  4. Step 4: Simplify right side
    19,526.88x = 246,784,481.05
  5. Step 5: Solve for x
    x = 246,784,481.05/19,526.88
  6. Step 6: Final answer
    x = 12,638.19

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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.