Home / 20,954.04-31,424.33-6,910.91

Finding the Fourth Proportional to 20,954.04, 31,424.33 and 6,910.91

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Solution

The fourth proportional to 20,954.04, 31,424.33 and 6,910.91 is: 10,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.04 : 31,424.33 = 6,910.91 : x
  2. Step 2: Convert to fraction form
    20,954.04/31,424.33 = 6,910.91/x
  3. Step 3: Cross multiply
    20,954.04x = 31,424.33 × 6,910.91
  4. Step 4: Simplify right side
    20,954.04x = 217,170,716.44
  5. Step 5: Solve for x
    x = 217,170,716.44/20,954.04
  6. Step 6: Final answer
    x = 10,364.15

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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.