Home / 21,900.08-30,203.88-16,236.56

Finding the Fourth Proportional to 21,900.08, 30,203.88 and 16,236.56

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Solution

The fourth proportional to 21,900.08, 30,203.88 and 16,236.56 is: 22,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900.08 : 30,203.88 = 16,236.56 : x
  2. Step 2: Convert to fraction form
    21,900.08/30,203.88 = 16,236.56/x
  3. Step 3: Cross multiply
    21,900.08x = 30,203.88 × 16,236.56
  4. Step 4: Simplify right side
    21,900.08x = 490,407,109.85
  5. Step 5: Solve for x
    x = 490,407,109.85/21,900.08
  6. Step 6: Final answer
    x = 22,392.94

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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.