Home / 28,100.72-42,158.00-9,382.77

Finding the Fourth Proportional to 28,100.72, 42,158.00 and 9,382.77

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Solution

The fourth proportional to 28,100.72, 42,158.00 and 9,382.77 is: 14,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100.72 : 42,158.00 = 9,382.77 : x
  2. Step 2: Convert to fraction form
    28,100.72/42,158.00 = 9,382.77/x
  3. Step 3: Cross multiply
    28,100.72x = 42,158.00 × 9,382.77
  4. Step 4: Simplify right side
    28,100.72x = 395,558,841.12
  5. Step 5: Solve for x
    x = 395,558,841.12/28,100.72
  6. Step 6: Final answer
    x = 14,076.47

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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.