Home / 18,847.26-28,215.86-14,124.36

Finding the Fourth Proportional to 18,847.26, 28,215.86 and 14,124.36

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Solution

The fourth proportional to 18,847.26, 28,215.86 and 14,124.36 is: 21,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,847.26 : 28,215.86 = 14,124.36 : x
  2. Step 2: Convert to fraction form
    18,847.26/28,215.86 = 14,124.36/x
  3. Step 3: Cross multiply
    18,847.26x = 28,215.86 × 14,124.36
  4. Step 4: Simplify right side
    18,847.26x = 398,530,964.35
  5. Step 5: Solve for x
    x = 398,530,964.35/18,847.26
  6. Step 6: Final answer
    x = 21,145.30

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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.