Home / 28,755.34-43,115.15-12,106.80

Finding the Fourth Proportional to 28,755.34, 43,115.15 and 12,106.80

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Solution

The fourth proportional to 28,755.34, 43,115.15 and 12,106.80 is: 18,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.34 : 43,115.15 = 12,106.80 : x
  2. Step 2: Convert to fraction form
    28,755.34/43,115.15 = 12,106.80/x
  3. Step 3: Cross multiply
    28,755.34x = 43,115.15 × 12,106.80
  4. Step 4: Simplify right side
    28,755.34x = 521,986,528.29
  5. Step 5: Solve for x
    x = 521,986,528.29/28,755.34
  6. Step 6: Final answer
    x = 18,152.68

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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.