Home / 35,811.89-53,680.37-19,993.72

Finding the Fourth Proportional to 35,811.89, 53,680.37 and 19,993.72

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Solution

The fourth proportional to 35,811.89, 53,680.37 and 19,993.72 is: 29,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,811.89 : 53,680.37 = 19,993.72 : x
  2. Step 2: Convert to fraction form
    35,811.89/53,680.37 = 19,993.72/x
  3. Step 3: Cross multiply
    35,811.89x = 53,680.37 × 19,993.72
  4. Step 4: Simplify right side
    35,811.89x = 1,073,270,266.22
  5. Step 5: Solve for x
    x = 1,073,270,266.22/35,811.89
  6. Step 6: Final answer
    x = 29,969.66

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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.