Home / 21,776.49-30,063.87-16,662.39

Finding the Fourth Proportional to 21,776.49, 30,063.87 and 16,662.39

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Solution

The fourth proportional to 21,776.49, 30,063.87 and 16,662.39 is: 23,003.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.49 : 30,063.87 = 16,662.39 : x
  2. Step 2: Convert to fraction form
    21,776.49/30,063.87 = 16,662.39/x
  3. Step 3: Cross multiply
    21,776.49x = 30,063.87 × 16,662.39
  4. Step 4: Simplify right side
    21,776.49x = 500,935,926.85
  5. Step 5: Solve for x
    x = 500,935,926.85/21,776.49
  6. Step 6: Final answer
    x = 23,003.52

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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.