Home / 21,694.80-29,938.68-12,263.34

Finding the Fourth Proportional to 21,694.80, 29,938.68 and 12,263.34

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Solution

The fourth proportional to 21,694.80, 29,938.68 and 12,263.34 is: 16,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,694.80 : 29,938.68 = 12,263.34 : x
  2. Step 2: Convert to fraction form
    21,694.80/29,938.68 = 12,263.34/x
  3. Step 3: Cross multiply
    21,694.80x = 29,938.68 × 12,263.34
  4. Step 4: Simplify right side
    21,694.80x = 367,148,211.99
  5. Step 5: Solve for x
    x = 367,148,211.99/21,694.80
  6. Step 6: Final answer
    x = 16,923.33

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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.