Home / 20,015.49-30,022.56-9,490.56

Finding the Fourth Proportional to 20,015.49, 30,022.56 and 9,490.56

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Solution

The fourth proportional to 20,015.49, 30,022.56 and 9,490.56 is: 14,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.49 : 30,022.56 = 9,490.56 : x
  2. Step 2: Convert to fraction form
    20,015.49/30,022.56 = 9,490.56/x
  3. Step 3: Cross multiply
    20,015.49x = 30,022.56 × 9,490.56
  4. Step 4: Simplify right side
    20,015.49x = 284,930,907.03
  5. Step 5: Solve for x
    x = 284,930,907.03/20,015.49
  6. Step 6: Final answer
    x = 14,235.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.