Home / 35,403.57-53,121.75-18,771.44

Finding the Fourth Proportional to 35,403.57, 53,121.75 and 18,771.44

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Solution

The fourth proportional to 35,403.57, 53,121.75 and 18,771.44 is: 28,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,403.57 : 53,121.75 = 18,771.44 : x
  2. Step 2: Convert to fraction form
    35,403.57/53,121.75 = 18,771.44/x
  3. Step 3: Cross multiply
    35,403.57x = 53,121.75 × 18,771.44
  4. Step 4: Simplify right side
    35,403.57x = 997,171,477.21
  5. Step 5: Solve for x
    x = 997,171,477.21/35,403.57
  6. Step 6: Final answer
    x = 28,165.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.