Home / 30,291.30-41,802.30-16,680.84

Finding the Fourth Proportional to 30,291.30, 41,802.30 and 16,680.84

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Solution

The fourth proportional to 30,291.30, 41,802.30 and 16,680.84 is: 23,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.30 : 41,802.30 = 16,680.84 : x
  2. Step 2: Convert to fraction form
    30,291.30/41,802.30 = 16,680.84/x
  3. Step 3: Cross multiply
    30,291.30x = 41,802.30 × 16,680.84
  4. Step 4: Simplify right side
    30,291.30x = 697,297,477.93
  5. Step 5: Solve for x
    x = 697,297,477.93/30,291.30
  6. Step 6: Final answer
    x = 23,019.73

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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.