Home / 20,667.92-31,006.24-10,804.56

Finding the Fourth Proportional to 20,667.92, 31,006.24 and 10,804.56

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Solution

The fourth proportional to 20,667.92, 31,006.24 and 10,804.56 is: 16,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.92 : 31,006.24 = 10,804.56 : x
  2. Step 2: Convert to fraction form
    20,667.92/31,006.24 = 10,804.56/x
  3. Step 3: Cross multiply
    20,667.92x = 31,006.24 × 10,804.56
  4. Step 4: Simplify right side
    20,667.92x = 335,008,780.45
  5. Step 5: Solve for x
    x = 335,008,780.45/20,667.92
  6. Step 6: Final answer
    x = 16,209.12

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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.