Home / 28,359.44-42,515.91-11,731.40

Finding the Fourth Proportional to 28,359.44, 42,515.91 and 11,731.40

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Solution

The fourth proportional to 28,359.44, 42,515.91 and 11,731.40 is: 17,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.44 : 42,515.91 = 11,731.40 : x
  2. Step 2: Convert to fraction form
    28,359.44/42,515.91 = 11,731.40/x
  3. Step 3: Cross multiply
    28,359.44x = 42,515.91 × 11,731.40
  4. Step 4: Simplify right side
    28,359.44x = 498,770,933.99
  5. Step 5: Solve for x
    x = 498,770,933.99/28,359.44
  6. Step 6: Final answer
    x = 17,587.48

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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.