Home / 20,015.43-30,022.46-9,490.49

Finding the Fourth Proportional to 20,015.43, 30,022.46 and 9,490.49

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Solution

The fourth proportional to 20,015.43, 30,022.46 and 9,490.49 is: 14,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.43 : 30,022.46 = 9,490.49 : x
  2. Step 2: Convert to fraction form
    20,015.43/30,022.46 = 9,490.49/x
  3. Step 3: Cross multiply
    20,015.43x = 30,022.46 × 9,490.49
  4. Step 4: Simplify right side
    20,015.43x = 284,927,955.19
  5. Step 5: Solve for x
    x = 284,927,955.19/20,015.43
  6. Step 6: Final answer
    x = 14,235.42

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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.