Home / 47,777.21-71,664.18-12,238.84

Finding the Fourth Proportional to 47,777.21, 71,664.18 and 12,238.84

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Solution

The fourth proportional to 47,777.21, 71,664.18 and 12,238.84 is: 18,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,777.21 : 71,664.18 = 12,238.84 : x
  2. Step 2: Convert to fraction form
    47,777.21/71,664.18 = 12,238.84/x
  3. Step 3: Cross multiply
    47,777.21x = 71,664.18 × 12,238.84
  4. Step 4: Simplify right side
    47,777.21x = 877,086,571.69
  5. Step 5: Solve for x
    x = 877,086,571.69/47,777.21
  6. Step 6: Final answer
    x = 18,357.84

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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.