Home / 19,118.42-28,789.93-16,682.30

Finding the Fourth Proportional to 19,118.42, 28,789.93 and 16,682.30

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Solution

The fourth proportional to 19,118.42, 28,789.93 and 16,682.30 is: 25,121.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.42 : 28,789.93 = 16,682.30 : x
  2. Step 2: Convert to fraction form
    19,118.42/28,789.93 = 16,682.30/x
  3. Step 3: Cross multiply
    19,118.42x = 28,789.93 × 16,682.30
  4. Step 4: Simplify right side
    19,118.42x = 480,282,165.83
  5. Step 5: Solve for x
    x = 480,282,165.83/19,118.42
  6. Step 6: Final answer
    x = 25,121.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.