Home / 19,005.42-28,503.14-5,675.28

Finding the Fourth Proportional to 19,005.42, 28,503.14 and 5,675.28

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Solution

The fourth proportional to 19,005.42, 28,503.14 and 5,675.28 is: 8,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.42 : 28,503.14 = 5,675.28 : x
  2. Step 2: Convert to fraction form
    19,005.42/28,503.14 = 5,675.28/x
  3. Step 3: Cross multiply
    19,005.42x = 28,503.14 × 5,675.28
  4. Step 4: Simplify right side
    19,005.42x = 161,763,300.38
  5. Step 5: Solve for x
    x = 161,763,300.38/19,005.42
  6. Step 6: Final answer
    x = 8,511.43

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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.