Home / 29,117.35-40,190.60-18,908.11

Finding the Fourth Proportional to 29,117.35, 40,190.60 and 18,908.11

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Solution

The fourth proportional to 29,117.35, 40,190.60 and 18,908.11 is: 26,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,117.35 : 40,190.60 = 18,908.11 : x
  2. Step 2: Convert to fraction form
    29,117.35/40,190.60 = 18,908.11/x
  3. Step 3: Cross multiply
    29,117.35x = 40,190.60 × 18,908.11
  4. Step 4: Simplify right side
    29,117.35x = 759,928,285.77
  5. Step 5: Solve for x
    x = 759,928,285.77/29,117.35
  6. Step 6: Final answer
    x = 26,098.81

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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.