Home / 28,475.69-42,717.60-8,755.89

Finding the Fourth Proportional to 28,475.69, 42,717.60 and 8,755.89

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Solution

The fourth proportional to 28,475.69, 42,717.60 and 8,755.89 is: 13,135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.69 : 42,717.60 = 8,755.89 : x
  2. Step 2: Convert to fraction form
    28,475.69/42,717.60 = 8,755.89/x
  3. Step 3: Cross multiply
    28,475.69x = 42,717.60 × 8,755.89
  4. Step 4: Simplify right side
    28,475.69x = 374,030,606.66
  5. Step 5: Solve for x
    x = 374,030,606.66/28,475.69
  6. Step 6: Final answer
    x = 13,135.09

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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.