Home / 20,184.58-30,289.56-10,705.42

Finding the Fourth Proportional to 20,184.58, 30,289.56 and 10,705.42

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Solution

The fourth proportional to 20,184.58, 30,289.56 and 10,705.42 is: 16,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,184.58 : 30,289.56 = 10,705.42 : x
  2. Step 2: Convert to fraction form
    20,184.58/30,289.56 = 10,705.42/x
  3. Step 3: Cross multiply
    20,184.58x = 30,289.56 × 10,705.42
  4. Step 4: Simplify right side
    20,184.58x = 324,262,461.42
  5. Step 5: Solve for x
    x = 324,262,461.42/20,184.58
  6. Step 6: Final answer
    x = 16,064.86

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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.