Home / 31,219.75-46,829.67-12,751.75

Finding the Fourth Proportional to 31,219.75, 46,829.67 and 12,751.75

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Solution

The fourth proportional to 31,219.75, 46,829.67 and 12,751.75 is: 19,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.75 : 46,829.67 = 12,751.75 : x
  2. Step 2: Convert to fraction form
    31,219.75/46,829.67 = 12,751.75/x
  3. Step 3: Cross multiply
    31,219.75x = 46,829.67 × 12,751.75
  4. Step 4: Simplify right side
    31,219.75x = 597,160,244.42
  5. Step 5: Solve for x
    x = 597,160,244.42/31,219.75
  6. Step 6: Final answer
    x = 19,127.64

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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.