Home / 29,451.08-40,638.84-19,911.74

Finding the Fourth Proportional to 29,451.08, 40,638.84 and 19,911.74

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Solution

The fourth proportional to 29,451.08, 40,638.84 and 19,911.74 is: 27,475.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,451.08 : 40,638.84 = 19,911.74 : x
  2. Step 2: Convert to fraction form
    29,451.08/40,638.84 = 19,911.74/x
  3. Step 3: Cross multiply
    29,451.08x = 40,638.84 × 19,911.74
  4. Step 4: Simplify right side
    29,451.08x = 809,190,015.98
  5. Step 5: Solve for x
    x = 809,190,015.98/29,451.08
  6. Step 6: Final answer
    x = 27,475.73

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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.