Home / 31,377.41-47,075.33-12,647.84

Finding the Fourth Proportional to 31,377.41, 47,075.33 and 12,647.84

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Solution

The fourth proportional to 31,377.41, 47,075.33 and 12,647.84 is: 18,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.41 : 47,075.33 = 12,647.84 : x
  2. Step 2: Convert to fraction form
    31,377.41/47,075.33 = 12,647.84/x
  3. Step 3: Cross multiply
    31,377.41x = 47,075.33 × 12,647.84
  4. Step 4: Simplify right side
    31,377.41x = 595,401,241.79
  5. Step 5: Solve for x
    x = 595,401,241.79/31,377.41
  6. Step 6: Final answer
    x = 18,975.47

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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.