Home / 20,323.58-30,479.76-9,800.46

Finding the Fourth Proportional to 20,323.58, 30,479.76 and 9,800.46

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Solution

The fourth proportional to 20,323.58, 30,479.76 and 9,800.46 is: 14,697.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.58 : 30,479.76 = 9,800.46 : x
  2. Step 2: Convert to fraction form
    20,323.58/30,479.76 = 9,800.46/x
  3. Step 3: Cross multiply
    20,323.58x = 30,479.76 × 9,800.46
  4. Step 4: Simplify right side
    20,323.58x = 298,715,668.69
  5. Step 5: Solve for x
    x = 298,715,668.69/20,323.58
  6. Step 6: Final answer
    x = 14,697.99

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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.