Home / 19,982.70-29,970.68-7,329.84

Finding the Fourth Proportional to 19,982.70, 29,970.68 and 7,329.84

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Solution

The fourth proportional to 19,982.70, 29,970.68 and 7,329.84 is: 10,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.70 : 29,970.68 = 7,329.84 : x
  2. Step 2: Convert to fraction form
    19,982.70/29,970.68 = 7,329.84/x
  3. Step 3: Cross multiply
    19,982.70x = 29,970.68 × 7,329.84
  4. Step 4: Simplify right side
    19,982.70x = 219,680,289.09
  5. Step 5: Solve for x
    x = 219,680,289.09/19,982.70
  6. Step 6: Final answer
    x = 10,993.52

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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.