Home / 30,288.43-45,439.94-12,763.27

Finding the Fourth Proportional to 30,288.43, 45,439.94 and 12,763.27

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Solution

The fourth proportional to 30,288.43, 45,439.94 and 12,763.27 is: 19,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,288.43 : 45,439.94 = 12,763.27 : x
  2. Step 2: Convert to fraction form
    30,288.43/45,439.94 = 12,763.27/x
  3. Step 3: Cross multiply
    30,288.43x = 45,439.94 × 12,763.27
  4. Step 4: Simplify right side
    30,288.43x = 579,962,223.00
  5. Step 5: Solve for x
    x = 579,962,223.00/30,288.43
  6. Step 6: Final answer
    x = 19,147.98

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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.