Home / 30,168.96-41,631.78-16,740.12

Finding the Fourth Proportional to 30,168.96, 41,631.78 and 16,740.12

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Solution

The fourth proportional to 30,168.96, 41,631.78 and 16,740.12 is: 23,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.96 : 41,631.78 = 16,740.12 : x
  2. Step 2: Convert to fraction form
    30,168.96/41,631.78 = 16,740.12/x
  3. Step 3: Cross multiply
    30,168.96x = 41,631.78 × 16,740.12
  4. Step 4: Simplify right side
    30,168.96x = 696,920,993.01
  5. Step 5: Solve for x
    x = 696,920,993.01/30,168.96
  6. Step 6: Final answer
    x = 23,100.60

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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.