Home / 13,932.81-20,900.43-4,570.02

Finding the Fourth Proportional to 13,932.81, 20,900.43 and 4,570.02

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Solution

The fourth proportional to 13,932.81, 20,900.43 and 4,570.02 is: 6,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.81 : 20,900.43 = 4,570.02 : x
  2. Step 2: Convert to fraction form
    13,932.81/20,900.43 = 4,570.02/x
  3. Step 3: Cross multiply
    13,932.81x = 20,900.43 × 4,570.02
  4. Step 4: Simplify right side
    13,932.81x = 95,515,383.11
  5. Step 5: Solve for x
    x = 95,515,383.11/13,932.81
  6. Step 6: Final answer
    x = 6,855.43

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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.