Home / 20,673.56-31,002.96-6,630.68

Finding the Fourth Proportional to 20,673.56, 31,002.96 and 6,630.68

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Solution

The fourth proportional to 20,673.56, 31,002.96 and 6,630.68 is: 9,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.56 : 31,002.96 = 6,630.68 : x
  2. Step 2: Convert to fraction form
    20,673.56/31,002.96 = 6,630.68/x
  3. Step 3: Cross multiply
    20,673.56x = 31,002.96 × 6,630.68
  4. Step 4: Simplify right side
    20,673.56x = 205,570,706.81
  5. Step 5: Solve for x
    x = 205,570,706.81/20,673.56
  6. Step 6: Final answer
    x = 9,943.65

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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.