Home / 20,669.16-30,992.94-10,784.28

Finding the Fourth Proportional to 20,669.16, 30,992.94 and 10,784.28

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Solution

The fourth proportional to 20,669.16, 30,992.94 and 10,784.28 is: 16,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.16 : 30,992.94 = 10,784.28 : x
  2. Step 2: Convert to fraction form
    20,669.16/30,992.94 = 10,784.28/x
  3. Step 3: Cross multiply
    20,669.16x = 30,992.94 × 10,784.28
  4. Step 4: Simplify right side
    20,669.16x = 334,236,542.98
  5. Step 5: Solve for x
    x = 334,236,542.98/20,669.16
  6. Step 6: Final answer
    x = 16,170.79

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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.