Home / 21,230.18-31,844.73-10,144.70

Finding the Fourth Proportional to 21,230.18, 31,844.73 and 10,144.70

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Solution

The fourth proportional to 21,230.18, 31,844.73 and 10,144.70 is: 15,216.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.18 : 31,844.73 = 10,144.70 : x
  2. Step 2: Convert to fraction form
    21,230.18/31,844.73 = 10,144.70/x
  3. Step 3: Cross multiply
    21,230.18x = 31,844.73 × 10,144.70
  4. Step 4: Simplify right side
    21,230.18x = 323,055,232.43
  5. Step 5: Solve for x
    x = 323,055,232.43/21,230.18
  6. Step 6: Final answer
    x = 15,216.79

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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.