Home / 21,986.76-30,333.32-16,257.96

Finding the Fourth Proportional to 21,986.76, 30,333.32 and 16,257.96

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Solution

The fourth proportional to 21,986.76, 30,333.32 and 16,257.96 is: 22,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.76 : 30,333.32 = 16,257.96 : x
  2. Step 2: Convert to fraction form
    21,986.76/30,333.32 = 16,257.96/x
  3. Step 3: Cross multiply
    21,986.76x = 30,333.32 × 16,257.96
  4. Step 4: Simplify right side
    21,986.76x = 493,157,903.23
  5. Step 5: Solve for x
    x = 493,157,903.23/21,986.76
  6. Step 6: Final answer
    x = 22,429.77

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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.