Home / 19,578.58-29,367.61-4,787.63

Finding the Fourth Proportional to 19,578.58, 29,367.61 and 4,787.63

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Solution

The fourth proportional to 19,578.58, 29,367.61 and 4,787.63 is: 7,181.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.58 : 29,367.61 = 4,787.63 : x
  2. Step 2: Convert to fraction form
    19,578.58/29,367.61 = 4,787.63/x
  3. Step 3: Cross multiply
    19,578.58x = 29,367.61 × 4,787.63
  4. Step 4: Simplify right side
    19,578.58x = 140,601,250.66
  5. Step 5: Solve for x
    x = 140,601,250.66/19,578.58
  6. Step 6: Final answer
    x = 7,181.38

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1.5x scale

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.