Home / 19,929.92-29,884.49-7,439.67

Finding the Fourth Proportional to 19,929.92, 29,884.49 and 7,439.67

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Solution

The fourth proportional to 19,929.92, 29,884.49 and 7,439.67 is: 11,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.92 : 29,884.49 = 7,439.67 : x
  2. Step 2: Convert to fraction form
    19,929.92/29,884.49 = 7,439.67/x
  3. Step 3: Cross multiply
    19,929.92x = 29,884.49 × 7,439.67
  4. Step 4: Simplify right side
    19,929.92x = 222,330,659.71
  5. Step 5: Solve for x
    x = 222,330,659.71/19,929.92
  6. Step 6: Final answer
    x = 11,155.62

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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.