Home / 31,771.85-47,645.01-13,054.77

Finding the Fourth Proportional to 31,771.85, 47,645.01 and 13,054.77

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Solution

The fourth proportional to 31,771.85, 47,645.01 and 13,054.77 is: 19,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.85 : 47,645.01 = 13,054.77 : x
  2. Step 2: Convert to fraction form
    31,771.85/47,645.01 = 13,054.77/x
  3. Step 3: Cross multiply
    31,771.85x = 47,645.01 × 13,054.77
  4. Step 4: Simplify right side
    31,771.85x = 621,994,647.20
  5. Step 5: Solve for x
    x = 621,994,647.20/31,771.85
  6. Step 6: Final answer
    x = 19,576.91

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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.