Home / 21,974.98-30,325.50-11,903.44

Finding the Fourth Proportional to 21,974.98, 30,325.50 and 11,903.44

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Solution

The fourth proportional to 21,974.98, 30,325.50 and 11,903.44 is: 16,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.98 : 30,325.50 = 11,903.44 : x
  2. Step 2: Convert to fraction form
    21,974.98/30,325.50 = 11,903.44/x
  3. Step 3: Cross multiply
    21,974.98x = 30,325.50 × 11,903.44
  4. Step 4: Simplify right side
    21,974.98x = 360,977,769.72
  5. Step 5: Solve for x
    x = 360,977,769.72/21,974.98
  6. Step 6: Final answer
    x = 16,426.76

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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.