Home / 30,146.67-41,613.21-20,579.72

Finding the Fourth Proportional to 30,146.67, 41,613.21 and 20,579.72

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Solution

The fourth proportional to 30,146.67, 41,613.21 and 20,579.72 is: 28,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.67 : 41,613.21 = 20,579.72 : x
  2. Step 2: Convert to fraction form
    30,146.67/41,613.21 = 20,579.72/x
  3. Step 3: Cross multiply
    30,146.67x = 41,613.21 × 20,579.72
  4. Step 4: Simplify right side
    30,146.67x = 856,388,002.04
  5. Step 5: Solve for x
    x = 856,388,002.04/30,146.67
  6. Step 6: Final answer
    x = 28,407.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.