Home / 19,985.41-29,989.99-8,892.73

Finding the Fourth Proportional to 19,985.41, 29,989.99 and 8,892.73

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Solution

The fourth proportional to 19,985.41, 29,989.99 and 8,892.73 is: 13,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.41 : 29,989.99 = 8,892.73 : x
  2. Step 2: Convert to fraction form
    19,985.41/29,989.99 = 8,892.73/x
  3. Step 3: Cross multiply
    19,985.41x = 29,989.99 × 8,892.73
  4. Step 4: Simplify right side
    19,985.41x = 266,692,733.82
  5. Step 5: Solve for x
    x = 266,692,733.82/19,985.41
  6. Step 6: Final answer
    x = 13,344.37

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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.