Home / 30,945.72-42,705.96-16,799.46

Finding the Fourth Proportional to 30,945.72, 42,705.96 and 16,799.46

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Solution

The fourth proportional to 30,945.72, 42,705.96 and 16,799.46 is: 23,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945.72 : 42,705.96 = 16,799.46 : x
  2. Step 2: Convert to fraction form
    30,945.72/42,705.96 = 16,799.46/x
  3. Step 3: Cross multiply
    30,945.72x = 42,705.96 × 16,799.46
  4. Step 4: Simplify right side
    30,945.72x = 717,437,066.78
  5. Step 5: Solve for x
    x = 717,437,066.78/30,945.72
  6. Step 6: Final answer
    x = 23,183.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.