Home / 19,650.08-29,394.12-12,619.28

Finding the Fourth Proportional to 19,650.08, 29,394.12 and 12,619.28

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Solution

The fourth proportional to 19,650.08, 29,394.12 and 12,619.28 is: 18,876.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.08 : 29,394.12 = 12,619.28 : x
  2. Step 2: Convert to fraction form
    19,650.08/29,394.12 = 12,619.28/x
  3. Step 3: Cross multiply
    19,650.08x = 29,394.12 × 12,619.28
  4. Step 4: Simplify right side
    19,650.08x = 370,932,630.63
  5. Step 5: Solve for x
    x = 370,932,630.63/19,650.08
  6. Step 6: Final answer
    x = 18,876.90

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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.