Home / 21,958.80-30,303.30-12,268.27

Finding the Fourth Proportional to 21,958.80, 30,303.30 and 12,268.27

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Solution

The fourth proportional to 21,958.80, 30,303.30 and 12,268.27 is: 16,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.80 : 30,303.30 = 12,268.27 : x
  2. Step 2: Convert to fraction form
    21,958.80/30,303.30 = 12,268.27/x
  3. Step 3: Cross multiply
    21,958.80x = 30,303.30 × 12,268.27
  4. Step 4: Simplify right side
    21,958.80x = 371,769,066.29
  5. Step 5: Solve for x
    x = 371,769,066.29/21,958.80
  6. Step 6: Final answer
    x = 16,930.30

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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.