Home / 20,556.59-28,369.95-11,606.29

Finding the Fourth Proportional to 20,556.59, 28,369.95 and 11,606.29

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Solution

The fourth proportional to 20,556.59, 28,369.95 and 11,606.29 is: 16,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.59 : 28,369.95 = 11,606.29 : x
  2. Step 2: Convert to fraction form
    20,556.59/28,369.95 = 11,606.29/x
  3. Step 3: Cross multiply
    20,556.59x = 28,369.95 × 11,606.29
  4. Step 4: Simplify right side
    20,556.59x = 329,269,752.54
  5. Step 5: Solve for x
    x = 329,269,752.54/20,556.59
  6. Step 6: Final answer
    x = 16,017.73

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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.