Home / 31,992.16-44,140.32-20,662.14

Finding the Fourth Proportional to 31,992.16, 44,140.32 and 20,662.14

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Solution

The fourth proportional to 31,992.16, 44,140.32 and 20,662.14 is: 28,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,992.16 : 44,140.32 = 20,662.14 : x
  2. Step 2: Convert to fraction form
    31,992.16/44,140.32 = 20,662.14/x
  3. Step 3: Cross multiply
    31,992.16x = 44,140.32 × 20,662.14
  4. Step 4: Simplify right side
    31,992.16x = 912,033,471.48
  5. Step 5: Solve for x
    x = 912,033,471.48/31,992.16
  6. Step 6: Final answer
    x = 28,508.03

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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.