Home / 20,293.40-30,425.74-6,960

Finding the Fourth Proportional to 20,293.40, 30,425.74 and 6,960

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Solution

The fourth proportional to 20,293.40, 30,425.74 and 6,960 is: 10,435.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.40 : 30,425.74 = 6,960 : x
  2. Step 2: Convert to fraction form
    20,293.40/30,425.74 = 6,960/x
  3. Step 3: Cross multiply
    20,293.40x = 30,425.74 × 6,960
  4. Step 4: Simplify right side
    20,293.40x = 211,763,150.40
  5. Step 5: Solve for x
    x = 211,763,150.40/20,293.40
  6. Step 6: Final answer
    x = 10,435.07

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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.