Home / 30,939.67-46,412.85-9,872.33

Finding the Fourth Proportional to 30,939.67, 46,412.85 and 9,872.33

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Solution

The fourth proportional to 30,939.67, 46,412.85 and 9,872.33 is: 14,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.67 : 46,412.85 = 9,872.33 : x
  2. Step 2: Convert to fraction form
    30,939.67/46,412.85 = 9,872.33/x
  3. Step 3: Cross multiply
    30,939.67x = 46,412.85 × 9,872.33
  4. Step 4: Simplify right side
    30,939.67x = 458,202,981.94
  5. Step 5: Solve for x
    x = 458,202,981.94/30,939.67
  6. Step 6: Final answer
    x = 14,809.56

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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.