Home / 20,843.02-31,273.42-13,825.49

Finding the Fourth Proportional to 20,843.02, 31,273.42 and 13,825.49

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Solution

The fourth proportional to 20,843.02, 31,273.42 and 13,825.49 is: 20,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.02 : 31,273.42 = 13,825.49 : x
  2. Step 2: Convert to fraction form
    20,843.02/31,273.42 = 13,825.49/x
  3. Step 3: Cross multiply
    20,843.02x = 31,273.42 × 13,825.49
  4. Step 4: Simplify right side
    20,843.02x = 432,370,151.58
  5. Step 5: Solve for x
    x = 432,370,151.58/20,843.02
  6. Step 6: Final answer
    x = 20,744.12

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1.5x scale

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.