Home / 47,907.68-71,858.34-19,820.39

Finding the Fourth Proportional to 47,907.68, 71,858.34 and 19,820.39

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Solution

The fourth proportional to 47,907.68, 71,858.34 and 19,820.39 is: 29,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,907.68 : 71,858.34 = 19,820.39 : x
  2. Step 2: Convert to fraction form
    47,907.68/71,858.34 = 19,820.39/x
  3. Step 3: Cross multiply
    47,907.68x = 71,858.34 × 19,820.39
  4. Step 4: Simplify right side
    47,907.68x = 1,424,259,964.26
  5. Step 5: Solve for x
    x = 1,424,259,964.26/47,907.68
  6. Step 6: Final answer
    x = 29,729.26

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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.