Home / 31,945.16-44,082.42-18,515.36

Finding the Fourth Proportional to 31,945.16, 44,082.42 and 18,515.36

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Solution

The fourth proportional to 31,945.16, 44,082.42 and 18,515.36 is: 25,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,945.16 : 44,082.42 = 18,515.36 : x
  2. Step 2: Convert to fraction form
    31,945.16/44,082.42 = 18,515.36/x
  3. Step 3: Cross multiply
    31,945.16x = 44,082.42 × 18,515.36
  4. Step 4: Simplify right side
    31,945.16x = 816,201,875.97
  5. Step 5: Solve for x
    x = 816,201,875.97/31,945.16
  6. Step 6: Final answer
    x = 25,550.10

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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.