Home / 28,891.74-43,278.48-19,984.98

Finding the Fourth Proportional to 28,891.74, 43,278.48 and 19,984.98

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Solution

The fourth proportional to 28,891.74, 43,278.48 and 19,984.98 is: 29,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.74 : 43,278.48 = 19,984.98 : x
  2. Step 2: Convert to fraction form
    28,891.74/43,278.48 = 19,984.98/x
  3. Step 3: Cross multiply
    28,891.74x = 43,278.48 × 19,984.98
  4. Step 4: Simplify right side
    28,891.74x = 864,919,557.23
  5. Step 5: Solve for x
    x = 864,919,557.23/28,891.74
  6. Step 6: Final answer
    x = 29,936.57

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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.