Home / 35,982.25-49,636.69-20,869.40

Finding the Fourth Proportional to 35,982.25, 49,636.69 and 20,869.40

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Solution

The fourth proportional to 35,982.25, 49,636.69 and 20,869.40 is: 28,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,982.25 : 49,636.69 = 20,869.40 : x
  2. Step 2: Convert to fraction form
    35,982.25/49,636.69 = 20,869.40/x
  3. Step 3: Cross multiply
    35,982.25x = 49,636.69 × 20,869.40
  4. Step 4: Simplify right side
    35,982.25x = 1,035,888,010.20
  5. Step 5: Solve for x
    x = 1,035,888,010.20/35,982.25
  6. Step 6: Final answer
    x = 28,788.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.