Home / 26,233.11-36,215.40-20,399.28

Finding the Fourth Proportional to 26,233.11, 36,215.40 and 20,399.28

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Solution

The fourth proportional to 26,233.11, 36,215.40 and 20,399.28 is: 28,161.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,233.11 : 36,215.40 = 20,399.28 : x
  2. Step 2: Convert to fraction form
    26,233.11/36,215.40 = 20,399.28/x
  3. Step 3: Cross multiply
    26,233.11x = 36,215.40 × 20,399.28
  4. Step 4: Simplify right side
    26,233.11x = 738,768,084.91
  5. Step 5: Solve for x
    x = 738,768,084.91/26,233.11
  6. Step 6: Final answer
    x = 28,161.67

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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.