Home / 29,063.72-43,538.40-19,172.78

Finding the Fourth Proportional to 29,063.72, 43,538.40 and 19,172.78

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Solution

The fourth proportional to 29,063.72, 43,538.40 and 19,172.78 is: 28,721.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,063.72 : 43,538.40 = 19,172.78 : x
  2. Step 2: Convert to fraction form
    29,063.72/43,538.40 = 19,172.78/x
  3. Step 3: Cross multiply
    29,063.72x = 43,538.40 × 19,172.78
  4. Step 4: Simplify right side
    29,063.72x = 834,752,164.75
  5. Step 5: Solve for x
    x = 834,752,164.75/29,063.72
  6. Step 6: Final answer
    x = 28,721.45

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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.