Home / 20,822.49-31,204.58-10,946.97

Finding the Fourth Proportional to 20,822.49, 31,204.58 and 10,946.97

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Solution

The fourth proportional to 20,822.49, 31,204.58 and 10,946.97 is: 16,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.49 : 31,204.58 = 10,946.97 : x
  2. Step 2: Convert to fraction form
    20,822.49/31,204.58 = 10,946.97/x
  3. Step 3: Cross multiply
    20,822.49x = 31,204.58 × 10,946.97
  4. Step 4: Simplify right side
    20,822.49x = 341,595,546.39
  5. Step 5: Solve for x
    x = 341,595,546.39/20,822.49
  6. Step 6: Final answer
    x = 16,405.12

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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.