Home / 28,665.09-42,996.12-8,941.39

Finding the Fourth Proportional to 28,665.09, 42,996.12 and 8,941.39

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Solution

The fourth proportional to 28,665.09, 42,996.12 and 8,941.39 is: 13,411.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665.09 : 42,996.12 = 8,941.39 : x
  2. Step 2: Convert to fraction form
    28,665.09/42,996.12 = 8,941.39/x
  3. Step 3: Cross multiply
    28,665.09x = 42,996.12 × 8,941.39
  4. Step 4: Simplify right side
    28,665.09x = 384,444,936.39
  5. Step 5: Solve for x
    x = 384,444,936.39/28,665.09
  6. Step 6: Final answer
    x = 13,411.61

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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.