Home / 19,486.90-29,200.61-10,129.96

Finding the Fourth Proportional to 19,486.90, 29,200.61 and 10,129.96

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Solution

The fourth proportional to 19,486.90, 29,200.61 and 10,129.96 is: 15,179.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.90 : 29,200.61 = 10,129.96 : x
  2. Step 2: Convert to fraction form
    19,486.90/29,200.61 = 10,129.96/x
  3. Step 3: Cross multiply
    19,486.90x = 29,200.61 × 10,129.96
  4. Step 4: Simplify right side
    19,486.90x = 295,800,938.27
  5. Step 5: Solve for x
    x = 295,800,938.27/19,486.90
  6. Step 6: Final answer
    x = 15,179.48

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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.