Home / 23,112.21-34,501.11-20,309.70

Finding the Fourth Proportional to 23,112.21, 34,501.11 and 20,309.70

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Solution

The fourth proportional to 23,112.21, 34,501.11 and 20,309.70 is: 30,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,112.21 : 34,501.11 = 20,309.70 : x
  2. Step 2: Convert to fraction form
    23,112.21/34,501.11 = 20,309.70/x
  3. Step 3: Cross multiply
    23,112.21x = 34,501.11 × 20,309.70
  4. Step 4: Simplify right side
    23,112.21x = 700,707,193.77
  5. Step 5: Solve for x
    x = 700,707,193.77/23,112.21
  6. Step 6: Final answer
    x = 30,317.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.