Home / 18,824.22-28,245.65-13,312.98

Finding the Fourth Proportional to 18,824.22, 28,245.65 and 13,312.98

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Solution

The fourth proportional to 18,824.22, 28,245.65 and 13,312.98 is: 19,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.22 : 28,245.65 = 13,312.98 : x
  2. Step 2: Convert to fraction form
    18,824.22/28,245.65 = 13,312.98/x
  3. Step 3: Cross multiply
    18,824.22x = 28,245.65 × 13,312.98
  4. Step 4: Simplify right side
    18,824.22x = 376,033,706.97
  5. Step 5: Solve for x
    x = 376,033,706.97/18,824.22
  6. Step 6: Final answer
    x = 19,976.06

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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.