Home / 35,745.18-49,322.79-20,431.50

Finding the Fourth Proportional to 35,745.18, 49,322.79 and 20,431.50

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Solution

The fourth proportional to 35,745.18, 49,322.79 and 20,431.50 is: 28,192.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,745.18 : 49,322.79 = 20,431.50 : x
  2. Step 2: Convert to fraction form
    35,745.18/49,322.79 = 20,431.50/x
  3. Step 3: Cross multiply
    35,745.18x = 49,322.79 × 20,431.50
  4. Step 4: Simplify right side
    35,745.18x = 1,007,738,583.89
  5. Step 5: Solve for x
    x = 1,007,738,583.89/35,745.18
  6. Step 6: Final answer
    x = 28,192.29

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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.