Home / 31,883.06-47,912.07-30,071.50

Finding the Fourth Proportional to 31,883.06, 47,912.07 and 30,071.50

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Solution

The fourth proportional to 31,883.06, 47,912.07 and 30,071.50 is: 45,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,883.06 : 47,912.07 = 30,071.50 : x
  2. Step 2: Convert to fraction form
    31,883.06/47,912.07 = 30,071.50/x
  3. Step 3: Cross multiply
    31,883.06x = 47,912.07 × 30,071.50
  4. Step 4: Simplify right side
    31,883.06x = 1,440,787,813.01
  5. Step 5: Solve for x
    x = 1,440,787,813.01/31,883.06
  6. Step 6: Final answer
    x = 45,189.76

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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.