Home / 30,120.94-41,563.53-16,688.81

Finding the Fourth Proportional to 30,120.94, 41,563.53 and 16,688.81

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Solution

The fourth proportional to 30,120.94, 41,563.53 and 16,688.81 is: 23,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.94 : 41,563.53 = 16,688.81 : x
  2. Step 2: Convert to fraction form
    30,120.94/41,563.53 = 16,688.81/x
  3. Step 3: Cross multiply
    30,120.94x = 41,563.53 × 16,688.81
  4. Step 4: Simplify right side
    30,120.94x = 693,645,959.01
  5. Step 5: Solve for x
    x = 693,645,959.01/30,120.94
  6. Step 6: Final answer
    x = 23,028.69

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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.