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Finding the Fourth Proportional to 30,716.37, 46,015.47 and 18,835.47

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Solution

The fourth proportional to 30,716.37, 46,015.47 and 18,835.47 is: 28,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,716.37 : 46,015.47 = 18,835.47 : x
  2. Step 2: Convert to fraction form
    30,716.37/46,015.47 = 18,835.47/x
  3. Step 3: Cross multiply
    30,716.37x = 46,015.47 × 18,835.47
  4. Step 4: Simplify right side
    30,716.37x = 866,723,004.72
  5. Step 5: Solve for x
    x = 866,723,004.72/30,716.37
  6. Step 6: Final answer
    x = 28,216.97

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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.