Home / 41,983.44-57,989.16-30,480

Finding the Fourth Proportional to 41,983.44, 57,989.16 and 30,480

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Solution

The fourth proportional to 41,983.44, 57,989.16 and 30,480 is: 42,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,983.44 : 57,989.16 = 30,480 : x
  2. Step 2: Convert to fraction form
    41,983.44/57,989.16 = 30,480/x
  3. Step 3: Cross multiply
    41,983.44x = 57,989.16 × 30,480
  4. Step 4: Simplify right side
    41,983.44x = 1,767,509,596.80
  5. Step 5: Solve for x
    x = 1,767,509,596.80/41,983.44
  6. Step 6: Final answer
    x = 42,100.16

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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.