Home / 20,583.01-28,404.27-11,151.57

Finding the Fourth Proportional to 20,583.01, 28,404.27 and 11,151.57

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Solution

The fourth proportional to 20,583.01, 28,404.27 and 11,151.57 is: 15,389.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.01 : 28,404.27 = 11,151.57 : x
  2. Step 2: Convert to fraction form
    20,583.01/28,404.27 = 11,151.57/x
  3. Step 3: Cross multiply
    20,583.01x = 28,404.27 × 11,151.57
  4. Step 4: Simplify right side
    20,583.01x = 316,752,311.72
  5. Step 5: Solve for x
    x = 316,752,311.72/20,583.01
  6. Step 6: Final answer
    x = 15,389.02

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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.