Home / 31,910.21-47,851.41-9,718.37

Finding the Fourth Proportional to 31,910.21, 47,851.41 and 9,718.37

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Solution

The fourth proportional to 31,910.21, 47,851.41 and 9,718.37 is: 14,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.21 : 47,851.41 = 9,718.37 : x
  2. Step 2: Convert to fraction form
    31,910.21/47,851.41 = 9,718.37/x
  3. Step 3: Cross multiply
    31,910.21x = 47,851.41 × 9,718.37
  4. Step 4: Simplify right side
    31,910.21x = 465,037,707.40
  5. Step 5: Solve for x
    x = 465,037,707.40/31,910.21
  6. Step 6: Final answer
    x = 14,573.32

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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.