Home / 20,088.24-27,722.01-11,135.90

Finding the Fourth Proportional to 20,088.24, 27,722.01 and 11,135.90

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Solution

The fourth proportional to 20,088.24, 27,722.01 and 11,135.90 is: 15,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.24 : 27,722.01 = 11,135.90 : x
  2. Step 2: Convert to fraction form
    20,088.24/27,722.01 = 11,135.90/x
  3. Step 3: Cross multiply
    20,088.24x = 27,722.01 × 11,135.90
  4. Step 4: Simplify right side
    20,088.24x = 308,709,392.55
  5. Step 5: Solve for x
    x = 308,709,392.55/20,088.24
  6. Step 6: Final answer
    x = 15,367.67

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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.