Home / 19,290.74-28,912.25-11,385.24

Finding the Fourth Proportional to 19,290.74, 28,912.25 and 11,385.24

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Solution

The fourth proportional to 19,290.74, 28,912.25 and 11,385.24 is: 17,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.74 : 28,912.25 = 11,385.24 : x
  2. Step 2: Convert to fraction form
    19,290.74/28,912.25 = 11,385.24/x
  3. Step 3: Cross multiply
    19,290.74x = 28,912.25 × 11,385.24
  4. Step 4: Simplify right side
    19,290.74x = 329,172,848.26
  5. Step 5: Solve for x
    x = 329,172,848.26/19,290.74
  6. Step 6: Final answer
    x = 17,063.78

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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.