Home / 19,993.45-29,990.21-5,202.34

Finding the Fourth Proportional to 19,993.45, 29,990.21 and 5,202.34

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Solution

The fourth proportional to 19,993.45, 29,990.21 and 5,202.34 is: 7,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.45 : 29,990.21 = 5,202.34 : x
  2. Step 2: Convert to fraction form
    19,993.45/29,990.21 = 5,202.34/x
  3. Step 3: Cross multiply
    19,993.45x = 29,990.21 × 5,202.34
  4. Step 4: Simplify right side
    19,993.45x = 156,019,269.09
  5. Step 5: Solve for x
    x = 156,019,269.09/19,993.45
  6. Step 6: Final answer
    x = 7,803.52

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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.