Home / 20,934.63-31,359.52-9,673.96

Finding the Fourth Proportional to 20,934.63, 31,359.52 and 9,673.96

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Solution

The fourth proportional to 20,934.63, 31,359.52 and 9,673.96 is: 14,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.63 : 31,359.52 = 9,673.96 : x
  2. Step 2: Convert to fraction form
    20,934.63/31,359.52 = 9,673.96/x
  3. Step 3: Cross multiply
    20,934.63x = 31,359.52 × 9,673.96
  4. Step 4: Simplify right side
    20,934.63x = 303,370,742.10
  5. Step 5: Solve for x
    x = 303,370,742.10/20,934.63
  6. Step 6: Final answer
    x = 14,491.34

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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.