Home / 31,182.07-46,762.10-8,989.46

Finding the Fourth Proportional to 31,182.07, 46,762.10 and 8,989.46

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Solution

The fourth proportional to 31,182.07, 46,762.10 and 8,989.46 is: 13,481.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,182.07 : 46,762.10 = 8,989.46 : x
  2. Step 2: Convert to fraction form
    31,182.07/46,762.10 = 8,989.46/x
  3. Step 3: Cross multiply
    31,182.07x = 46,762.10 × 8,989.46
  4. Step 4: Simplify right side
    31,182.07x = 420,365,982.52
  5. Step 5: Solve for x
    x = 420,365,982.52/31,182.07
  6. Step 6: Final answer
    x = 13,481.02

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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.