Home / 31,450.90-47,137.47-15,860.02

Finding the Fourth Proportional to 31,450.90, 47,137.47 and 15,860.02

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Solution

The fourth proportional to 31,450.90, 47,137.47 and 15,860.02 is: 23,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.90 : 47,137.47 = 15,860.02 : x
  2. Step 2: Convert to fraction form
    31,450.90/47,137.47 = 15,860.02/x
  3. Step 3: Cross multiply
    31,450.90x = 47,137.47 × 15,860.02
  4. Step 4: Simplify right side
    31,450.90x = 747,601,216.95
  5. Step 5: Solve for x
    x = 747,601,216.95/31,450.90
  6. Step 6: Final answer
    x = 23,770.42

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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.