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Finding the Fourth Proportional to 19,375.00, 29,111.70 and 12,358.37

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Solution

The fourth proportional to 19,375.00, 29,111.70 and 12,358.37 is: 18,568.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.00 : 29,111.70 = 12,358.37 : x
  2. Step 2: Convert to fraction form
    19,375.00/29,111.70 = 12,358.37/x
  3. Step 3: Cross multiply
    19,375.00x = 29,111.70 × 12,358.37
  4. Step 4: Simplify right side
    19,375.00x = 359,773,279.05
  5. Step 5: Solve for x
    x = 359,773,279.05/19,375.00
  6. Step 6: Final answer
    x = 18,568.95

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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.