Home / 19,519.79-29,285.89-11,620.67

Finding the Fourth Proportional to 19,519.79, 29,285.89 and 11,620.67

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Solution

The fourth proportional to 19,519.79, 29,285.89 and 11,620.67 is: 17,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.79 : 29,285.89 = 11,620.67 : x
  2. Step 2: Convert to fraction form
    19,519.79/29,285.89 = 11,620.67/x
  3. Step 3: Cross multiply
    19,519.79x = 29,285.89 × 11,620.67
  4. Step 4: Simplify right side
    19,519.79x = 340,321,487.87
  5. Step 5: Solve for x
    x = 340,321,487.87/19,519.79
  6. Step 6: Final answer
    x = 17,434.69

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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.