Home / 18,976.50-28,408.68-14,013.18

Finding the Fourth Proportional to 18,976.50, 28,408.68 and 14,013.18

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Solution

The fourth proportional to 18,976.50, 28,408.68 and 14,013.18 is: 20,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.50 : 28,408.68 = 14,013.18 : x
  2. Step 2: Convert to fraction form
    18,976.50/28,408.68 = 14,013.18/x
  3. Step 3: Cross multiply
    18,976.50x = 28,408.68 × 14,013.18
  4. Step 4: Simplify right side
    18,976.50x = 398,095,946.40
  5. Step 5: Solve for x
    x = 398,095,946.40/18,976.50
  6. Step 6: Final answer
    x = 20,978.37

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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.