Home / 20,954.22-31,424.61-6,911.10

Finding the Fourth Proportional to 20,954.22, 31,424.61 and 6,911.10

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Solution

The fourth proportional to 20,954.22, 31,424.61 and 6,911.10 is: 10,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.22 : 31,424.61 = 6,911.10 : x
  2. Step 2: Convert to fraction form
    20,954.22/31,424.61 = 6,911.10/x
  3. Step 3: Cross multiply
    20,954.22x = 31,424.61 × 6,911.10
  4. Step 4: Simplify right side
    20,954.22x = 217,178,622.17
  5. Step 5: Solve for x
    x = 217,178,622.17/20,954.22
  6. Step 6: Final answer
    x = 10,364.43

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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.