Home / 19,788.64-29,650.08-13,932.96

Finding the Fourth Proportional to 19,788.64, 29,650.08 and 13,932.96

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Solution

The fourth proportional to 19,788.64, 29,650.08 and 13,932.96 is: 20,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.64 : 29,650.08 = 13,932.96 : x
  2. Step 2: Convert to fraction form
    19,788.64/29,650.08 = 13,932.96/x
  3. Step 3: Cross multiply
    19,788.64x = 29,650.08 × 13,932.96
  4. Step 4: Simplify right side
    19,788.64x = 413,113,378.64
  5. Step 5: Solve for x
    x = 413,113,378.64/19,788.64
  6. Step 6: Final answer
    x = 20,876.29

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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.