Home / 19,671.37-29,512.32-8,578.96

Finding the Fourth Proportional to 19,671.37, 29,512.32 and 8,578.96

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Solution

The fourth proportional to 19,671.37, 29,512.32 and 8,578.96 is: 12,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,671.37 : 29,512.32 = 8,578.96 : x
  2. Step 2: Convert to fraction form
    19,671.37/29,512.32 = 8,578.96/x
  3. Step 3: Cross multiply
    19,671.37x = 29,512.32 × 8,578.96
  4. Step 4: Simplify right side
    19,671.37x = 253,185,012.79
  5. Step 5: Solve for x
    x = 253,185,012.79/19,671.37
  6. Step 6: Final answer
    x = 12,870.74

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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.