Home / 30,828.87-46,215-11,102.64

Finding the Fourth Proportional to 30,828.87, 46,215 and 11,102.64

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Solution

The fourth proportional to 30,828.87, 46,215 and 11,102.64 is: 16,643.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828.87 : 46,215 = 11,102.64 : x
  2. Step 2: Convert to fraction form
    30,828.87/46,215 = 11,102.64/x
  3. Step 3: Cross multiply
    30,828.87x = 46,215 × 11,102.64
  4. Step 4: Simplify right side
    30,828.87x = 513,108,507.60
  5. Step 5: Solve for x
    x = 513,108,507.60/30,828.87
  6. Step 6: Final answer
    x = 16,643.77

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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.