Home / 28,757.64-43,100.94-12,111.84

Finding the Fourth Proportional to 28,757.64, 43,100.94 and 12,111.84

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Solution

The fourth proportional to 28,757.64, 43,100.94 and 12,111.84 is: 18,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.64 : 43,100.94 = 12,111.84 : x
  2. Step 2: Convert to fraction form
    28,757.64/43,100.94 = 12,111.84/x
  3. Step 3: Cross multiply
    28,757.64x = 43,100.94 × 12,111.84
  4. Step 4: Simplify right side
    28,757.64x = 522,031,689.13
  5. Step 5: Solve for x
    x = 522,031,689.13/28,757.64
  6. Step 6: Final answer
    x = 18,152.80

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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.