Home / 20,668.02-31,004.31-6,624.72

Finding the Fourth Proportional to 20,668.02, 31,004.31 and 6,624.72

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Solution

The fourth proportional to 20,668.02, 31,004.31 and 6,624.72 is: 9,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.02 : 31,004.31 = 6,624.72 : x
  2. Step 2: Convert to fraction form
    20,668.02/31,004.31 = 6,624.72/x
  3. Step 3: Cross multiply
    20,668.02x = 31,004.31 × 6,624.72
  4. Step 4: Simplify right side
    20,668.02x = 205,394,872.54
  5. Step 5: Solve for x
    x = 205,394,872.54/20,668.02
  6. Step 6: Final answer
    x = 9,937.81

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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.