Home / 36,153.30-49,890.45-20,839.90

Finding the Fourth Proportional to 36,153.30, 49,890.45 and 20,839.90

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Solution

The fourth proportional to 36,153.30, 49,890.45 and 20,839.90 is: 28,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,153.30 : 49,890.45 = 20,839.90 : x
  2. Step 2: Convert to fraction form
    36,153.30/49,890.45 = 20,839.90/x
  3. Step 3: Cross multiply
    36,153.30x = 49,890.45 × 20,839.90
  4. Step 4: Simplify right side
    36,153.30x = 1,039,711,918.70
  5. Step 5: Solve for x
    x = 1,039,711,918.70/36,153.30
  6. Step 6: Final answer
    x = 28,758.42

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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.