Home / 29,718.21-41,015.34-18,391.36

Finding the Fourth Proportional to 29,718.21, 41,015.34 and 18,391.36

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Solution

The fourth proportional to 29,718.21, 41,015.34 and 18,391.36 is: 25,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,718.21 : 41,015.34 = 18,391.36 : x
  2. Step 2: Convert to fraction form
    29,718.21/41,015.34 = 18,391.36/x
  3. Step 3: Cross multiply
    29,718.21x = 41,015.34 × 18,391.36
  4. Step 4: Simplify right side
    29,718.21x = 754,327,826.01
  5. Step 5: Solve for x
    x = 754,327,826.01/29,718.21
  6. Step 6: Final answer
    x = 25,382.68

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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.