Home / 31,804.74-47,708.82-12,085.02

Finding the Fourth Proportional to 31,804.74, 47,708.82 and 12,085.02

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Solution

The fourth proportional to 31,804.74, 47,708.82 and 12,085.02 is: 18,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,804.74 : 47,708.82 = 12,085.02 : x
  2. Step 2: Convert to fraction form
    31,804.74/47,708.82 = 12,085.02/x
  3. Step 3: Cross multiply
    31,804.74x = 47,708.82 × 12,085.02
  4. Step 4: Simplify right side
    31,804.74x = 576,562,043.88
  5. Step 5: Solve for x
    x = 576,562,043.88/31,804.74
  6. Step 6: Final answer
    x = 18,128.18

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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.