Home / 30,907.37-46,361.16-8,720.87

Finding the Fourth Proportional to 30,907.37, 46,361.16 and 8,720.87

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Solution

The fourth proportional to 30,907.37, 46,361.16 and 8,720.87 is: 13,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.37 : 46,361.16 = 8,720.87 : x
  2. Step 2: Convert to fraction form
    30,907.37/46,361.16 = 8,720.87/x
  3. Step 3: Cross multiply
    30,907.37x = 46,361.16 × 8,720.87
  4. Step 4: Simplify right side
    30,907.37x = 404,309,417.60
  5. Step 5: Solve for x
    x = 404,309,417.60/30,907.37
  6. Step 6: Final answer
    x = 13,081.33

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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.