Home / 21,933.16-30,267.86-11,861.60

Finding the Fourth Proportional to 21,933.16, 30,267.86 and 11,861.60

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Solution

The fourth proportional to 21,933.16, 30,267.86 and 11,861.60 is: 16,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.16 : 30,267.86 = 11,861.60 : x
  2. Step 2: Convert to fraction form
    21,933.16/30,267.86 = 11,861.60/x
  3. Step 3: Cross multiply
    21,933.16x = 30,267.86 × 11,861.60
  4. Step 4: Simplify right side
    21,933.16x = 359,025,323.78
  5. Step 5: Solve for x
    x = 359,025,323.78/21,933.16
  6. Step 6: Final answer
    x = 16,369.06

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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.