Home / 20,148.40-30,206.52-6,994

Finding the Fourth Proportional to 20,148.40, 30,206.52 and 6,994

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Solution

The fourth proportional to 20,148.40, 30,206.52 and 6,994 is: 10,485.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.40 : 30,206.52 = 6,994 : x
  2. Step 2: Convert to fraction form
    20,148.40/30,206.52 = 6,994/x
  3. Step 3: Cross multiply
    20,148.40x = 30,206.52 × 6,994
  4. Step 4: Simplify right side
    20,148.40x = 211,264,400.88
  5. Step 5: Solve for x
    x = 211,264,400.88/20,148.40
  6. Step 6: Final answer
    x = 10,485.42

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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.