Home / 35,539.03-49,043.10-20,431.30

Finding the Fourth Proportional to 35,539.03, 49,043.10 and 20,431.30

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Solution

The fourth proportional to 35,539.03, 49,043.10 and 20,431.30 is: 28,194.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,539.03 : 49,043.10 = 20,431.30 : x
  2. Step 2: Convert to fraction form
    35,539.03/49,043.10 = 20,431.30/x
  3. Step 3: Cross multiply
    35,539.03x = 49,043.10 × 20,431.30
  4. Step 4: Simplify right side
    35,539.03x = 1,002,014,289.03
  5. Step 5: Solve for x
    x = 1,002,014,289.03/35,539.03
  6. Step 6: Final answer
    x = 28,194.76

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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.