Home / 19,458.20-29,138.70-12,848.60

Finding the Fourth Proportional to 19,458.20, 29,138.70 and 12,848.60

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Solution

The fourth proportional to 19,458.20, 29,138.70 and 12,848.60 is: 19,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.20 : 29,138.70 = 12,848.60 : x
  2. Step 2: Convert to fraction form
    19,458.20/29,138.70 = 12,848.60/x
  3. Step 3: Cross multiply
    19,458.20x = 29,138.70 × 12,848.60
  4. Step 4: Simplify right side
    19,458.20x = 374,391,500.82
  5. Step 5: Solve for x
    x = 374,391,500.82/19,458.20
  6. Step 6: Final answer
    x = 19,240.81

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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.