Home / 30,157.66-41,617.42-16,728.78

Finding the Fourth Proportional to 30,157.66, 41,617.42 and 16,728.78

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Solution

The fourth proportional to 30,157.66, 41,617.42 and 16,728.78 is: 23,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.66 : 41,617.42 = 16,728.78 : x
  2. Step 2: Convert to fraction form
    30,157.66/41,617.42 = 16,728.78/x
  3. Step 3: Cross multiply
    30,157.66x = 41,617.42 × 16,728.78
  4. Step 4: Simplify right side
    30,157.66x = 696,208,663.35
  5. Step 5: Solve for x
    x = 696,208,663.35/30,157.66
  6. Step 6: Final answer
    x = 23,085.63

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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.