Home / 28,081.56-38,758.62-19,150.38

Finding the Fourth Proportional to 28,081.56, 38,758.62 and 19,150.38

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Solution

The fourth proportional to 28,081.56, 38,758.62 and 19,150.38 is: 26,431.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.56 : 38,758.62 = 19,150.38 : x
  2. Step 2: Convert to fraction form
    28,081.56/38,758.62 = 19,150.38/x
  3. Step 3: Cross multiply
    28,081.56x = 38,758.62 × 19,150.38
  4. Step 4: Simplify right side
    28,081.56x = 742,242,301.28
  5. Step 5: Solve for x
    x = 742,242,301.28/28,081.56
  6. Step 6: Final answer
    x = 26,431.66

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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.