Home / 20,936.21-31,411.13-9,844.00

Finding the Fourth Proportional to 20,936.21, 31,411.13 and 9,844.00

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Solution

The fourth proportional to 20,936.21, 31,411.13 and 9,844.00 is: 14,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936.21 : 31,411.13 = 9,844.00 : x
  2. Step 2: Convert to fraction form
    20,936.21/31,411.13 = 9,844.00/x
  3. Step 3: Cross multiply
    20,936.21x = 31,411.13 × 9,844.00
  4. Step 4: Simplify right side
    20,936.21x = 309,211,035.97
  5. Step 5: Solve for x
    x = 309,211,035.97/20,936.21
  6. Step 6: Final answer
    x = 14,769.20

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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.