Home / 47,903.45-71,849.70-12,840.37

Finding the Fourth Proportional to 47,903.45, 71,849.70 and 12,840.37

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Solution

The fourth proportional to 47,903.45, 71,849.70 and 12,840.37 is: 19,259.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,903.45 : 71,849.70 = 12,840.37 : x
  2. Step 2: Convert to fraction form
    47,903.45/71,849.70 = 12,840.37/x
  3. Step 3: Cross multiply
    47,903.45x = 71,849.70 × 12,840.37
  4. Step 4: Simplify right side
    47,903.45x = 922,576,552.76
  5. Step 5: Solve for x
    x = 922,576,552.76/47,903.45
  6. Step 6: Final answer
    x = 19,259.09

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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.