Home / 36,098.78-49,796.32-20,989.78

Finding the Fourth Proportional to 36,098.78, 49,796.32 and 20,989.78

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Solution

The fourth proportional to 36,098.78, 49,796.32 and 20,989.78 is: 28,954.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,098.78 : 49,796.32 = 20,989.78 : x
  2. Step 2: Convert to fraction form
    36,098.78/49,796.32 = 20,989.78/x
  3. Step 3: Cross multiply
    36,098.78x = 49,796.32 × 20,989.78
  4. Step 4: Simplify right side
    36,098.78x = 1,045,213,801.61
  5. Step 5: Solve for x
    x = 1,045,213,801.61/36,098.78
  6. Step 6: Final answer
    x = 28,954.27

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1.5x scale

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.