Home / 31,771.19-47,657.21-21,907.82

Finding the Fourth Proportional to 31,771.19, 47,657.21 and 21,907.82

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Solution

The fourth proportional to 31,771.19, 47,657.21 and 21,907.82 is: 32,862.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.19 : 47,657.21 = 21,907.82 : x
  2. Step 2: Convert to fraction form
    31,771.19/47,657.21 = 21,907.82/x
  3. Step 3: Cross multiply
    31,771.19x = 47,657.21 × 21,907.82
  4. Step 4: Simplify right side
    31,771.19x = 1,044,065,230.56
  5. Step 5: Solve for x
    x = 1,044,065,230.56/31,771.19
  6. Step 6: Final answer
    x = 32,862.02

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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.