Home / 14,358.21-21,538.49-3,969.96

Finding the Fourth Proportional to 14,358.21, 21,538.49 and 3,969.96

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Solution

The fourth proportional to 14,358.21, 21,538.49 and 3,969.96 is: 5,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.21 : 21,538.49 = 3,969.96 : x
  2. Step 2: Convert to fraction form
    14,358.21/21,538.49 = 3,969.96/x
  3. Step 3: Cross multiply
    14,358.21x = 21,538.49 × 3,969.96
  4. Step 4: Simplify right side
    14,358.21x = 85,506,923.91
  5. Step 5: Solve for x
    x = 85,506,923.91/14,358.21
  6. Step 6: Final answer
    x = 5,955.26

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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.