Home / 31,172.65-46,730.66-12,448.69

Finding the Fourth Proportional to 31,172.65, 46,730.66 and 12,448.69

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Solution

The fourth proportional to 31,172.65, 46,730.66 and 12,448.69 is: 18,661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,172.65 : 46,730.66 = 12,448.69 : x
  2. Step 2: Convert to fraction form
    31,172.65/46,730.66 = 12,448.69/x
  3. Step 3: Cross multiply
    31,172.65x = 46,730.66 × 12,448.69
  4. Step 4: Simplify right side
    31,172.65x = 581,735,320.77
  5. Step 5: Solve for x
    x = 581,735,320.77/31,172.65
  6. Step 6: Final answer
    x = 18,661.72

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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.