Home / 19,345.16-29,020.75-8,251.88

Finding the Fourth Proportional to 19,345.16, 29,020.75 and 8,251.88

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Solution

The fourth proportional to 19,345.16, 29,020.75 and 8,251.88 is: 12,379.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.16 : 29,020.75 = 8,251.88 : x
  2. Step 2: Convert to fraction form
    19,345.16/29,020.75 = 8,251.88/x
  3. Step 3: Cross multiply
    19,345.16x = 29,020.75 × 8,251.88
  4. Step 4: Simplify right side
    19,345.16x = 239,475,580.78
  5. Step 5: Solve for x
    x = 239,475,580.78/19,345.16
  6. Step 6: Final answer
    x = 12,379.09

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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.