Home / 29,190.78-40,296.69-19,119.66

Finding the Fourth Proportional to 29,190.78, 40,296.69 and 19,119.66

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Solution

The fourth proportional to 29,190.78, 40,296.69 and 19,119.66 is: 26,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,190.78 : 40,296.69 = 19,119.66 : x
  2. Step 2: Convert to fraction form
    29,190.78/40,296.69 = 19,119.66/x
  3. Step 3: Cross multiply
    29,190.78x = 40,296.69 × 19,119.66
  4. Step 4: Simplify right side
    29,190.78x = 770,459,011.93
  5. Step 5: Solve for x
    x = 770,459,011.93/29,190.78
  6. Step 6: Final answer
    x = 26,393.92

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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.