Home / 20,604.05-28,433.41-11,651.52

Finding the Fourth Proportional to 20,604.05, 28,433.41 and 11,651.52

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Solution

The fourth proportional to 20,604.05, 28,433.41 and 11,651.52 is: 16,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.05 : 28,433.41 = 11,651.52 : x
  2. Step 2: Convert to fraction form
    20,604.05/28,433.41 = 11,651.52/x
  3. Step 3: Cross multiply
    20,604.05x = 28,433.41 × 11,651.52
  4. Step 4: Simplify right side
    20,604.05x = 331,292,588.32
  5. Step 5: Solve for x
    x = 331,292,588.32/20,604.05
  6. Step 6: Final answer
    x = 16,079.00

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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.