Home / 47,993.64-71,985.30-12,936.84

Finding the Fourth Proportional to 47,993.64, 71,985.30 and 12,936.84

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Solution

The fourth proportional to 47,993.64, 71,985.30 and 12,936.84 is: 19,403.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,993.64 : 71,985.30 = 12,936.84 : x
  2. Step 2: Convert to fraction form
    47,993.64/71,985.30 = 12,936.84/x
  3. Step 3: Cross multiply
    47,993.64x = 71,985.30 × 12,936.84
  4. Step 4: Simplify right side
    47,993.64x = 931,262,308.45
  5. Step 5: Solve for x
    x = 931,262,308.45/47,993.64
  6. Step 6: Final answer
    x = 19,403.87

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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.