Home / 19,620.47-29,398.34-11,307.47

Finding the Fourth Proportional to 19,620.47, 29,398.34 and 11,307.47

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Solution

The fourth proportional to 19,620.47, 29,398.34 and 11,307.47 is: 16,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.47 : 29,398.34 = 11,307.47 : x
  2. Step 2: Convert to fraction form
    19,620.47/29,398.34 = 11,307.47/x
  3. Step 3: Cross multiply
    19,620.47x = 29,398.34 × 11,307.47
  4. Step 4: Simplify right side
    19,620.47x = 332,420,847.60
  5. Step 5: Solve for x
    x = 332,420,847.60/19,620.47
  6. Step 6: Final answer
    x = 16,942.55

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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.