Home / 47,991.89-71,929.52-21,325.07

Finding the Fourth Proportional to 47,991.89, 71,929.52 and 21,325.07

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Solution

The fourth proportional to 47,991.89, 71,929.52 and 21,325.07 is: 31,961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,991.89 : 71,929.52 = 21,325.07 : x
  2. Step 2: Convert to fraction form
    47,991.89/71,929.52 = 21,325.07/x
  3. Step 3: Cross multiply
    47,991.89x = 71,929.52 × 21,325.07
  4. Step 4: Simplify right side
    47,991.89x = 1,533,902,202.23
  5. Step 5: Solve for x
    x = 1,533,902,202.23/47,991.89
  6. Step 6: Final answer
    x = 31,961.69

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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.