Home / 20,953.97-31,424.24-6,910.85

Finding the Fourth Proportional to 20,953.97, 31,424.24 and 6,910.85

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Solution

The fourth proportional to 20,953.97, 31,424.24 and 6,910.85 is: 10,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.97 : 31,424.24 = 6,910.85 : x
  2. Step 2: Convert to fraction form
    20,953.97/31,424.24 = 6,910.85/x
  3. Step 3: Cross multiply
    20,953.97x = 31,424.24 × 6,910.85
  4. Step 4: Simplify right side
    20,953.97x = 217,168,017.33
  5. Step 5: Solve for x
    x = 217,168,017.33/20,953.97
  6. Step 6: Final answer
    x = 10,364.05

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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.