Home / 19,812.45-29,715.52-7,329.64

Finding the Fourth Proportional to 19,812.45, 29,715.52 and 7,329.64

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Solution

The fourth proportional to 19,812.45, 29,715.52 and 7,329.64 is: 10,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.45 : 29,715.52 = 7,329.64 : x
  2. Step 2: Convert to fraction form
    19,812.45/29,715.52 = 7,329.64/x
  3. Step 3: Cross multiply
    19,812.45x = 29,715.52 × 7,329.64
  4. Step 4: Simplify right side
    19,812.45x = 217,803,998.89
  5. Step 5: Solve for x
    x = 217,803,998.89/19,812.45
  6. Step 6: Final answer
    x = 10,993.29

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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.