Home / 20,281.10-30,414.26-7,794.68

Finding the Fourth Proportional to 20,281.10, 30,414.26 and 7,794.68

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Solution

The fourth proportional to 20,281.10, 30,414.26 and 7,794.68 is: 11,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.10 : 30,414.26 = 7,794.68 : x
  2. Step 2: Convert to fraction form
    20,281.10/30,414.26 = 7,794.68/x
  3. Step 3: Cross multiply
    20,281.10x = 30,414.26 × 7,794.68
  4. Step 4: Simplify right side
    20,281.10x = 237,069,424.14
  5. Step 5: Solve for x
    x = 237,069,424.14/20,281.10
  6. Step 6: Final answer
    x = 11,689.18

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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.