Home / 19,329.24-28,956.30-11,911.80

Finding the Fourth Proportional to 19,329.24, 28,956.30 and 11,911.80

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Solution

The fourth proportional to 19,329.24, 28,956.30 and 11,911.80 is: 17,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.24 : 28,956.30 = 11,911.80 : x
  2. Step 2: Convert to fraction form
    19,329.24/28,956.30 = 11,911.80/x
  3. Step 3: Cross multiply
    19,329.24x = 28,956.30 × 11,911.80
  4. Step 4: Simplify right side
    19,329.24x = 344,921,654.34
  5. Step 5: Solve for x
    x = 344,921,654.34/19,329.24
  6. Step 6: Final answer
    x = 17,844.55

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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.