Home / 28,540.49-42,810.73-8,818.61

Finding the Fourth Proportional to 28,540.49, 42,810.73 and 8,818.61

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Solution

The fourth proportional to 28,540.49, 42,810.73 and 8,818.61 is: 13,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.49 : 42,810.73 = 8,818.61 : x
  2. Step 2: Convert to fraction form
    28,540.49/42,810.73 = 8,818.61/x
  3. Step 3: Cross multiply
    28,540.49x = 42,810.73 × 8,818.61
  4. Step 4: Simplify right side
    28,540.49x = 377,530,895.59
  5. Step 5: Solve for x
    x = 377,530,895.59/28,540.49
  6. Step 6: Final answer
    x = 13,227.91

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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.