Home / 28,666.09-42,997.62-8,942.39

Finding the Fourth Proportional to 28,666.09, 42,997.62 and 8,942.39

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Solution

The fourth proportional to 28,666.09, 42,997.62 and 8,942.39 is: 13,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.09 : 42,997.62 = 8,942.39 : x
  2. Step 2: Convert to fraction form
    28,666.09/42,997.62 = 8,942.39/x
  3. Step 3: Cross multiply
    28,666.09x = 42,997.62 × 8,942.39
  4. Step 4: Simplify right side
    28,666.09x = 384,501,487.11
  5. Step 5: Solve for x
    x = 384,501,487.11/28,666.09
  6. Step 6: Final answer
    x = 13,413.11

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1.5x scale

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.