Home / 28,744.32-43,116.49-12,930.88

Finding the Fourth Proportional to 28,744.32, 43,116.49 and 12,930.88

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Solution

The fourth proportional to 28,744.32, 43,116.49 and 12,930.88 is: 19,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.32 : 43,116.49 = 12,930.88 : x
  2. Step 2: Convert to fraction form
    28,744.32/43,116.49 = 12,930.88/x
  3. Step 3: Cross multiply
    28,744.32x = 43,116.49 × 12,930.88
  4. Step 4: Simplify right side
    28,744.32x = 557,533,971.61
  5. Step 5: Solve for x
    x = 557,533,971.61/28,744.32
  6. Step 6: Final answer
    x = 19,396.32

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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.