Home / 18,682.31-28,020.52-5,170.29

Finding the Fourth Proportional to 18,682.31, 28,020.52 and 5,170.29

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Solution

The fourth proportional to 18,682.31, 28,020.52 and 5,170.29 is: 7,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.31 : 28,020.52 = 5,170.29 : x
  2. Step 2: Convert to fraction form
    18,682.31/28,020.52 = 5,170.29/x
  3. Step 3: Cross multiply
    18,682.31x = 28,020.52 × 5,170.29
  4. Step 4: Simplify right side
    18,682.31x = 144,874,214.35
  5. Step 5: Solve for x
    x = 144,874,214.35/18,682.31
  6. Step 6: Final answer
    x = 7,754.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.