Home / 21,792.62-30,063.81-12,835.83

Finding the Fourth Proportional to 21,792.62, 30,063.81 and 12,835.83

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Solution

The fourth proportional to 21,792.62, 30,063.81 and 12,835.83 is: 17,707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,792.62 : 30,063.81 = 12,835.83 : x
  2. Step 2: Convert to fraction form
    21,792.62/30,063.81 = 12,835.83/x
  3. Step 3: Cross multiply
    21,792.62x = 30,063.81 × 12,835.83
  4. Step 4: Simplify right side
    21,792.62x = 385,893,954.31
  5. Step 5: Solve for x
    x = 385,893,954.31/21,792.62
  6. Step 6: Final answer
    x = 17,707.56

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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.