Home / 19,072.80-28,577.88-18,343.80

Finding the Fourth Proportional to 19,072.80, 28,577.88 and 18,343.80

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Solution

The fourth proportional to 19,072.80, 28,577.88 and 18,343.80 is: 27,485.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.80 : 28,577.88 = 18,343.80 : x
  2. Step 2: Convert to fraction form
    19,072.80/28,577.88 = 18,343.80/x
  3. Step 3: Cross multiply
    19,072.80x = 28,577.88 × 18,343.80
  4. Step 4: Simplify right side
    19,072.80x = 524,226,915.14
  5. Step 5: Solve for x
    x = 524,226,915.14/19,072.80
  6. Step 6: Final answer
    x = 27,485.58

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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.