Home / 20,300.32-30,453.97-6,972.68

Finding the Fourth Proportional to 20,300.32, 30,453.97 and 6,972.68

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Solution

The fourth proportional to 20,300.32, 30,453.97 and 6,972.68 is: 10,460.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.32 : 30,453.97 = 6,972.68 : x
  2. Step 2: Convert to fraction form
    20,300.32/30,453.97 = 6,972.68/x
  3. Step 3: Cross multiply
    20,300.32x = 30,453.97 × 6,972.68
  4. Step 4: Simplify right side
    20,300.32x = 212,345,787.54
  5. Step 5: Solve for x
    x = 212,345,787.54/20,300.32
  6. Step 6: Final answer
    x = 10,460.22

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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.