Home / 20,550.38-28,359.03-11,597.64

Finding the Fourth Proportional to 20,550.38, 28,359.03 and 11,597.64

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Solution

The fourth proportional to 20,550.38, 28,359.03 and 11,597.64 is: 16,004.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.38 : 28,359.03 = 11,597.64 : x
  2. Step 2: Convert to fraction form
    20,550.38/28,359.03 = 11,597.64/x
  3. Step 3: Cross multiply
    20,550.38x = 28,359.03 × 11,597.64
  4. Step 4: Simplify right side
    20,550.38x = 328,897,820.69
  5. Step 5: Solve for x
    x = 328,897,820.69/20,550.38
  6. Step 6: Final answer
    x = 16,004.47

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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.