Home / 30,338.02-41,868.57-18,401.86

Finding the Fourth Proportional to 30,338.02, 41,868.57 and 18,401.86

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Solution

The fourth proportional to 30,338.02, 41,868.57 and 18,401.86 is: 25,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,338.02 : 41,868.57 = 18,401.86 : x
  2. Step 2: Convert to fraction form
    30,338.02/41,868.57 = 18,401.86/x
  3. Step 3: Cross multiply
    30,338.02x = 41,868.57 × 18,401.86
  4. Step 4: Simplify right side
    30,338.02x = 770,459,563.54
  5. Step 5: Solve for x
    x = 770,459,563.54/30,338.02
  6. Step 6: Final answer
    x = 25,395.84

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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.