Home / 30,905.86-46,367.43-10,143.94

Finding the Fourth Proportional to 30,905.86, 46,367.43 and 10,143.94

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Solution

The fourth proportional to 30,905.86, 46,367.43 and 10,143.94 is: 15,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.86 : 46,367.43 = 10,143.94 : x
  2. Step 2: Convert to fraction form
    30,905.86/46,367.43 = 10,143.94/x
  3. Step 3: Cross multiply
    30,905.86x = 46,367.43 × 10,143.94
  4. Step 4: Simplify right side
    30,905.86x = 470,348,427.87
  5. Step 5: Solve for x
    x = 470,348,427.87/30,905.86
  6. Step 6: Final answer
    x = 15,218.75

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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.