Home / 47,685.36-71,519.93-12,628.56

Finding the Fourth Proportional to 47,685.36, 71,519.93 and 12,628.56

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Solution

The fourth proportional to 47,685.36, 71,519.93 and 12,628.56 is: 18,940.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,685.36 : 71,519.93 = 12,628.56 : x
  2. Step 2: Convert to fraction form
    47,685.36/71,519.93 = 12,628.56/x
  3. Step 3: Cross multiply
    47,685.36x = 71,519.93 × 12,628.56
  4. Step 4: Simplify right side
    47,685.36x = 903,193,727.20
  5. Step 5: Solve for x
    x = 903,193,727.20/47,685.36
  6. Step 6: Final answer
    x = 18,940.69

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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.