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Finding the Fourth Proportional to 30,230.69, 41,719.06 and 16,802.51

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Solution

The fourth proportional to 30,230.69, 41,719.06 and 16,802.51 is: 23,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.69 : 41,719.06 = 16,802.51 : x
  2. Step 2: Convert to fraction form
    30,230.69/41,719.06 = 16,802.51/x
  3. Step 3: Cross multiply
    30,230.69x = 41,719.06 × 16,802.51
  4. Step 4: Simplify right side
    30,230.69x = 700,984,776.54
  5. Step 5: Solve for x
    x = 700,984,776.54/30,230.69
  6. Step 6: Final answer
    x = 23,187.85

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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.