Home / 20,167.58-30,260.04-7,012.78

Finding the Fourth Proportional to 20,167.58, 30,260.04 and 7,012.78

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Solution

The fourth proportional to 20,167.58, 30,260.04 and 7,012.78 is: 10,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.58 : 30,260.04 = 7,012.78 : x
  2. Step 2: Convert to fraction form
    20,167.58/30,260.04 = 7,012.78/x
  3. Step 3: Cross multiply
    20,167.58x = 30,260.04 × 7,012.78
  4. Step 4: Simplify right side
    20,167.58x = 212,207,003.31
  5. Step 5: Solve for x
    x = 212,207,003.31/20,167.58
  6. Step 6: Final answer
    x = 10,522.18

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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.