Home / 28,319.19-39,082.41-18,742.56

Finding the Fourth Proportional to 28,319.19, 39,082.41 and 18,742.56

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Solution

The fourth proportional to 28,319.19, 39,082.41 and 18,742.56 is: 25,866.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.19 : 39,082.41 = 18,742.56 : x
  2. Step 2: Convert to fraction form
    28,319.19/39,082.41 = 18,742.56/x
  3. Step 3: Cross multiply
    28,319.19x = 39,082.41 × 18,742.56
  4. Step 4: Simplify right side
    28,319.19x = 732,504,414.37
  5. Step 5: Solve for x
    x = 732,504,414.37/28,319.19
  6. Step 6: Final answer
    x = 25,866.01

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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.