Home / 28,087.56-38,766.90-19,156.38

Finding the Fourth Proportional to 28,087.56, 38,766.90 and 19,156.38

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Solution

The fourth proportional to 28,087.56, 38,766.90 and 19,156.38 is: 26,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,087.56 : 38,766.90 = 19,156.38 : x
  2. Step 2: Convert to fraction form
    28,087.56/38,766.90 = 19,156.38/x
  3. Step 3: Cross multiply
    28,087.56x = 38,766.90 × 19,156.38
  4. Step 4: Simplify right side
    28,087.56x = 742,633,467.82
  5. Step 5: Solve for x
    x = 742,633,467.82/28,087.56
  6. Step 6: Final answer
    x = 26,439.94

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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.