Home / 30,942.78-46,406.74-14,286.81

Finding the Fourth Proportional to 30,942.78, 46,406.74 and 14,286.81

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Solution

The fourth proportional to 30,942.78, 46,406.74 and 14,286.81 is: 21,426.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.78 : 46,406.74 = 14,286.81 : x
  2. Step 2: Convert to fraction form
    30,942.78/46,406.74 = 14,286.81/x
  3. Step 3: Cross multiply
    30,942.78x = 46,406.74 × 14,286.81
  4. Step 4: Simplify right side
    30,942.78x = 663,003,990.37
  5. Step 5: Solve for x
    x = 663,003,990.37/30,942.78
  6. Step 6: Final answer
    x = 21,426.77

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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.