Home / 35,313.20-48,736.52-20,409.20

Finding the Fourth Proportional to 35,313.20, 48,736.52 and 20,409.20

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Solution

The fourth proportional to 35,313.20, 48,736.52 and 20,409.20 is: 28,167.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,313.20 : 48,736.52 = 20,409.20 : x
  2. Step 2: Convert to fraction form
    35,313.20/48,736.52 = 20,409.20/x
  3. Step 3: Cross multiply
    35,313.20x = 48,736.52 × 20,409.20
  4. Step 4: Simplify right side
    35,313.20x = 994,673,383.98
  5. Step 5: Solve for x
    x = 994,673,383.98/35,313.20
  6. Step 6: Final answer
    x = 28,167.18

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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.