Home / 19,415.83-29,118.34-12,295.43

Finding the Fourth Proportional to 19,415.83, 29,118.34 and 12,295.43

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Solution

The fourth proportional to 19,415.83, 29,118.34 and 12,295.43 is: 18,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.83 : 29,118.34 = 12,295.43 : x
  2. Step 2: Convert to fraction form
    19,415.83/29,118.34 = 12,295.43/x
  3. Step 3: Cross multiply
    19,415.83x = 29,118.34 × 12,295.43
  4. Step 4: Simplify right side
    19,415.83x = 358,022,524.74
  5. Step 5: Solve for x
    x = 358,022,524.74/19,415.83
  6. Step 6: Final answer
    x = 18,439.73

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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.