Home / 19,999.49-30,000.96-5,208.41

Finding the Fourth Proportional to 19,999.49, 30,000.96 and 5,208.41

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Solution

The fourth proportional to 19,999.49, 30,000.96 and 5,208.41 is: 7,813.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.49 : 30,000.96 = 5,208.41 : x
  2. Step 2: Convert to fraction form
    19,999.49/30,000.96 = 5,208.41/x
  3. Step 3: Cross multiply
    19,999.49x = 30,000.96 × 5,208.41
  4. Step 4: Simplify right side
    19,999.49x = 156,257,375.08
  5. Step 5: Solve for x
    x = 156,257,375.08/19,999.49
  6. Step 6: Final answer
    x = 7,813.07

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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.