Home / 20,943.02-31,424.78-9,850.83

Finding the Fourth Proportional to 20,943.02, 31,424.78 and 9,850.83

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Solution

The fourth proportional to 20,943.02, 31,424.78 and 9,850.83 is: 14,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.02 : 31,424.78 = 9,850.83 : x
  2. Step 2: Convert to fraction form
    20,943.02/31,424.78 = 9,850.83/x
  3. Step 3: Cross multiply
    20,943.02x = 31,424.78 × 9,850.83
  4. Step 4: Simplify right side
    20,943.02x = 309,560,072.35
  5. Step 5: Solve for x
    x = 309,560,072.35/20,943.02
  6. Step 6: Final answer
    x = 14,781.06

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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.