Home / 19,772.62-29,639.91-7,285.84

Finding the Fourth Proportional to 19,772.62, 29,639.91 and 7,285.84

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Solution

The fourth proportional to 19,772.62, 29,639.91 and 7,285.84 is: 10,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.62 : 29,639.91 = 7,285.84 : x
  2. Step 2: Convert to fraction form
    19,772.62/29,639.91 = 7,285.84/x
  3. Step 3: Cross multiply
    19,772.62x = 29,639.91 × 7,285.84
  4. Step 4: Simplify right side
    19,772.62x = 215,951,641.87
  5. Step 5: Solve for x
    x = 215,951,641.87/19,772.62
  6. Step 6: Final answer
    x = 10,921.75

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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.