Home / 19,431.77-29,141.44-8,335.47

Finding the Fourth Proportional to 19,431.77, 29,141.44 and 8,335.47

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Solution

The fourth proportional to 19,431.77, 29,141.44 and 8,335.47 is: 12,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.77 : 29,141.44 = 8,335.47 : x
  2. Step 2: Convert to fraction form
    19,431.77/29,141.44 = 8,335.47/x
  3. Step 3: Cross multiply
    19,431.77x = 29,141.44 × 8,335.47
  4. Step 4: Simplify right side
    19,431.77x = 242,907,687.32
  5. Step 5: Solve for x
    x = 242,907,687.32/19,431.77
  6. Step 6: Final answer
    x = 12,500.55

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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.