Home / 31,977.84-47,961.30-14,443.56

Finding the Fourth Proportional to 31,977.84, 47,961.30 and 14,443.56

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Solution

The fourth proportional to 31,977.84, 47,961.30 and 14,443.56 is: 21,662.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,977.84 : 47,961.30 = 14,443.56 : x
  2. Step 2: Convert to fraction form
    31,977.84/47,961.30 = 14,443.56/x
  3. Step 3: Cross multiply
    31,977.84x = 47,961.30 × 14,443.56
  4. Step 4: Simplify right side
    31,977.84x = 692,731,914.23
  5. Step 5: Solve for x
    x = 692,731,914.23/31,977.84
  6. Step 6: Final answer
    x = 21,662.87

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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.