Home / 30,516.64-45,794.22-12,986.44

Finding the Fourth Proportional to 30,516.64, 45,794.22 and 12,986.44

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Solution

The fourth proportional to 30,516.64, 45,794.22 and 12,986.44 is: 19,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.64 : 45,794.22 = 12,986.44 : x
  2. Step 2: Convert to fraction form
    30,516.64/45,794.22 = 12,986.44/x
  3. Step 3: Cross multiply
    30,516.64x = 45,794.22 × 12,986.44
  4. Step 4: Simplify right side
    30,516.64x = 594,703,890.38
  5. Step 5: Solve for x
    x = 594,703,890.38/30,516.64
  6. Step 6: Final answer
    x = 19,487.86

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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.