Home / 28,443.92-42,651.84-8,717.72

Finding the Fourth Proportional to 28,443.92, 42,651.84 and 8,717.72

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Solution

The fourth proportional to 28,443.92, 42,651.84 and 8,717.72 is: 13,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.92 : 42,651.84 = 8,717.72 : x
  2. Step 2: Convert to fraction form
    28,443.92/42,651.84 = 8,717.72/x
  3. Step 3: Cross multiply
    28,443.92x = 42,651.84 × 8,717.72
  4. Step 4: Simplify right side
    28,443.92x = 371,826,905.23
  5. Step 5: Solve for x
    x = 371,826,905.23/28,443.92
  6. Step 6: Final answer
    x = 13,072.28

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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.