Home / 21,310.11-31,949.41-7,266.42

Finding the Fourth Proportional to 21,310.11, 31,949.41 and 7,266.42

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Solution

The fourth proportional to 21,310.11, 31,949.41 and 7,266.42 is: 10,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.11 : 31,949.41 = 7,266.42 : x
  2. Step 2: Convert to fraction form
    21,310.11/31,949.41 = 7,266.42/x
  3. Step 3: Cross multiply
    21,310.11x = 31,949.41 × 7,266.42
  4. Step 4: Simplify right side
    21,310.11x = 232,157,831.81
  5. Step 5: Solve for x
    x = 232,157,831.81/21,310.11
  6. Step 6: Final answer
    x = 10,894.26

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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.