Home / 19,084.55-28,630.97-7,985.53

Finding the Fourth Proportional to 19,084.55, 28,630.97 and 7,985.53

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Solution

The fourth proportional to 19,084.55, 28,630.97 and 7,985.53 is: 11,980.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,084.55 : 28,630.97 = 7,985.53 : x
  2. Step 2: Convert to fraction form
    19,084.55/28,630.97 = 7,985.53/x
  3. Step 3: Cross multiply
    19,084.55x = 28,630.97 × 7,985.53
  4. Step 4: Simplify right side
    19,084.55x = 228,633,379.54
  5. Step 5: Solve for x
    x = 228,633,379.54/19,084.55
  6. Step 6: Final answer
    x = 11,980.02

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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.