Home / 28,631.94-42,960.15-14,790.66

Finding the Fourth Proportional to 28,631.94, 42,960.15 and 14,790.66

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Solution

The fourth proportional to 28,631.94, 42,960.15 and 14,790.66 is: 22,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.94 : 42,960.15 = 14,790.66 : x
  2. Step 2: Convert to fraction form
    28,631.94/42,960.15 = 14,790.66/x
  3. Step 3: Cross multiply
    28,631.94x = 42,960.15 × 14,790.66
  4. Step 4: Simplify right side
    28,631.94x = 635,408,972.20
  5. Step 5: Solve for x
    x = 635,408,972.20/28,631.94
  6. Step 6: Final answer
    x = 22,192.31

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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.