Home / 30,157.80-41,618.16-16,729.32

Finding the Fourth Proportional to 30,157.80, 41,618.16 and 16,729.32

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Solution

The fourth proportional to 30,157.80, 41,618.16 and 16,729.32 is: 23,086.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.80 : 41,618.16 = 16,729.32 : x
  2. Step 2: Convert to fraction form
    30,157.80/41,618.16 = 16,729.32/x
  3. Step 3: Cross multiply
    30,157.80x = 41,618.16 × 16,729.32
  4. Step 4: Simplify right side
    30,157.80x = 696,243,516.45
  5. Step 5: Solve for x
    x = 696,243,516.45/30,157.80
  6. Step 6: Final answer
    x = 23,086.68

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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.