Home / 30,664.78-46,003.80-9,315.75

Finding the Fourth Proportional to 30,664.78, 46,003.80 and 9,315.75

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Solution

The fourth proportional to 30,664.78, 46,003.80 and 9,315.75 is: 13,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.78 : 46,003.80 = 9,315.75 : x
  2. Step 2: Convert to fraction form
    30,664.78/46,003.80 = 9,315.75/x
  3. Step 3: Cross multiply
    30,664.78x = 46,003.80 × 9,315.75
  4. Step 4: Simplify right side
    30,664.78x = 428,559,899.85
  5. Step 5: Solve for x
    x = 428,559,899.85/30,664.78
  6. Step 6: Final answer
    x = 13,975.64

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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.