Home / 19,415.08-29,103.72-8,891.92

Finding the Fourth Proportional to 19,415.08, 29,103.72 and 8,891.92

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Solution

The fourth proportional to 19,415.08, 29,103.72 and 8,891.92 is: 13,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.08 : 29,103.72 = 8,891.92 : x
  2. Step 2: Convert to fraction form
    19,415.08/29,103.72 = 8,891.92/x
  3. Step 3: Cross multiply
    19,415.08x = 29,103.72 × 8,891.92
  4. Step 4: Simplify right side
    19,415.08x = 258,787,949.94
  5. Step 5: Solve for x
    x = 258,787,949.94/19,415.08
  6. Step 6: Final answer
    x = 13,329.22

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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.