Home / 22,745.78-34,124.84-12,891.98

Finding the Fourth Proportional to 22,745.78, 34,124.84 and 12,891.98

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Solution

The fourth proportional to 22,745.78, 34,124.84 and 12,891.98 is: 19,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.78 : 34,124.84 = 12,891.98 : x
  2. Step 2: Convert to fraction form
    22,745.78/34,124.84 = 12,891.98/x
  3. Step 3: Cross multiply
    22,745.78x = 34,124.84 × 12,891.98
  4. Step 4: Simplify right side
    22,745.78x = 439,936,754.78
  5. Step 5: Solve for x
    x = 439,936,754.78/22,745.78
  6. Step 6: Final answer
    x = 19,341.47

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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.