Home / 20,974.24-31,462.44-7,646.93

Finding the Fourth Proportional to 20,974.24, 31,462.44 and 7,646.93

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Solution

The fourth proportional to 20,974.24, 31,462.44 and 7,646.93 is: 11,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.24 : 31,462.44 = 7,646.93 : x
  2. Step 2: Convert to fraction form
    20,974.24/31,462.44 = 7,646.93/x
  3. Step 3: Cross multiply
    20,974.24x = 31,462.44 × 7,646.93
  4. Step 4: Simplify right side
    20,974.24x = 240,590,956.84
  5. Step 5: Solve for x
    x = 240,590,956.84/20,974.24
  6. Step 6: Final answer
    x = 11,470.78

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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.