Home / 29,985.21-41,395.41-19,380.87

Finding the Fourth Proportional to 29,985.21, 41,395.41 and 19,380.87

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Solution

The fourth proportional to 29,985.21, 41,395.41 and 19,380.87 is: 26,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,985.21 : 41,395.41 = 19,380.87 : x
  2. Step 2: Convert to fraction form
    29,985.21/41,395.41 = 19,380.87/x
  3. Step 3: Cross multiply
    29,985.21x = 41,395.41 × 19,380.87
  4. Step 4: Simplify right side
    29,985.21x = 802,279,059.81
  5. Step 5: Solve for x
    x = 802,279,059.81/29,985.21
  6. Step 6: Final answer
    x = 26,755.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.