Home / 20,227.08-30,339.68-7,082.40

Finding the Fourth Proportional to 20,227.08, 30,339.68 and 7,082.40

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Solution

The fourth proportional to 20,227.08, 30,339.68 and 7,082.40 is: 10,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.08 : 30,339.68 = 7,082.40 : x
  2. Step 2: Convert to fraction form
    20,227.08/30,339.68 = 7,082.40/x
  3. Step 3: Cross multiply
    20,227.08x = 30,339.68 × 7,082.40
  4. Step 4: Simplify right side
    20,227.08x = 214,877,714.22
  5. Step 5: Solve for x
    x = 214,877,714.22/20,227.08
  6. Step 6: Final answer
    x = 10,623.27

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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.