Home / 28,761.84-43,124.89-12,113.30

Finding the Fourth Proportional to 28,761.84, 43,124.89 and 12,113.30

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Solution

The fourth proportional to 28,761.84, 43,124.89 and 12,113.30 is: 18,162.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.84 : 43,124.89 = 12,113.30 : x
  2. Step 2: Convert to fraction form
    28,761.84/43,124.89 = 12,113.30/x
  3. Step 3: Cross multiply
    28,761.84x = 43,124.89 × 12,113.30
  4. Step 4: Simplify right side
    28,761.84x = 522,384,730.04
  5. Step 5: Solve for x
    x = 522,384,730.04/28,761.84
  6. Step 6: Final answer
    x = 18,162.42

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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.