Home / 28,086.56-38,765.52-19,155.38

Finding the Fourth Proportional to 28,086.56, 38,765.52 and 19,155.38

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Solution

The fourth proportional to 28,086.56, 38,765.52 and 19,155.38 is: 26,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.56 : 38,765.52 = 19,155.38 : x
  2. Step 2: Convert to fraction form
    28,086.56/38,765.52 = 19,155.38/x
  3. Step 3: Cross multiply
    28,086.56x = 38,765.52 × 19,155.38
  4. Step 4: Simplify right side
    28,086.56x = 742,568,266.50
  5. Step 5: Solve for x
    x = 742,568,266.50/28,086.56
  6. Step 6: Final answer
    x = 26,438.56

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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.