Home / 22,620.24-31,222.32-15,907.44

Finding the Fourth Proportional to 22,620.24, 31,222.32 and 15,907.44

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Solution

The fourth proportional to 22,620.24, 31,222.32 and 15,907.44 is: 21,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,620.24 : 31,222.32 = 15,907.44 : x
  2. Step 2: Convert to fraction form
    22,620.24/31,222.32 = 15,907.44/x
  3. Step 3: Cross multiply
    22,620.24x = 31,222.32 × 15,907.44
  4. Step 4: Simplify right side
    22,620.24x = 496,667,182.06
  5. Step 5: Solve for x
    x = 496,667,182.06/22,620.24
  6. Step 6: Final answer
    x = 21,956.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.