Home / 31,095.60-46,626.30-21,246

Finding the Fourth Proportional to 31,095.60, 46,626.30 and 21,246

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Solution

The fourth proportional to 31,095.60, 46,626.30 and 21,246 is: 31,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,095.60 : 46,626.30 = 21,246 : x
  2. Step 2: Convert to fraction form
    31,095.60/46,626.30 = 21,246/x
  3. Step 3: Cross multiply
    31,095.60x = 46,626.30 × 21,246
  4. Step 4: Simplify right side
    31,095.60x = 990,622,369.80
  5. Step 5: Solve for x
    x = 990,622,369.80/31,095.60
  6. Step 6: Final answer
    x = 31,857.32

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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.