Home / 21,811.57-30,083.68-14,730.61

Finding the Fourth Proportional to 21,811.57, 30,083.68 and 14,730.61

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Solution

The fourth proportional to 21,811.57, 30,083.68 and 14,730.61 is: 20,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,811.57 : 30,083.68 = 14,730.61 : x
  2. Step 2: Convert to fraction form
    21,811.57/30,083.68 = 14,730.61/x
  3. Step 3: Cross multiply
    21,811.57x = 30,083.68 × 14,730.61
  4. Step 4: Simplify right side
    21,811.57x = 443,150,957.44
  5. Step 5: Solve for x
    x = 443,150,957.44/21,811.57
  6. Step 6: Final answer
    x = 20,317.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.