Home / 30,402.89-41,956.70-19,072.87

Finding the Fourth Proportional to 30,402.89, 41,956.70 and 19,072.87

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Solution

The fourth proportional to 30,402.89, 41,956.70 and 19,072.87 is: 26,321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.89 : 41,956.70 = 19,072.87 : x
  2. Step 2: Convert to fraction form
    30,402.89/41,956.70 = 19,072.87/x
  3. Step 3: Cross multiply
    30,402.89x = 41,956.70 × 19,072.87
  4. Step 4: Simplify right side
    30,402.89x = 800,234,684.73
  5. Step 5: Solve for x
    x = 800,234,684.73/30,402.89
  6. Step 6: Final answer
    x = 26,321.01

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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.