Home / 21,944.70-30,283.38-12,513.42

Finding the Fourth Proportional to 21,944.70, 30,283.38 and 12,513.42

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Solution

The fourth proportional to 21,944.70, 30,283.38 and 12,513.42 is: 17,268.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,944.70 : 30,283.38 = 12,513.42 : x
  2. Step 2: Convert to fraction form
    21,944.70/30,283.38 = 12,513.42/x
  3. Step 3: Cross multiply
    21,944.70x = 30,283.38 × 12,513.42
  4. Step 4: Simplify right side
    21,944.70x = 378,948,652.96
  5. Step 5: Solve for x
    x = 378,948,652.96/21,944.70
  6. Step 6: Final answer
    x = 17,268.35

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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.