Home / 20,208.65-30,316.64-8,355.98

Finding the Fourth Proportional to 20,208.65, 30,316.64 and 8,355.98

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Solution

The fourth proportional to 20,208.65, 30,316.64 and 8,355.98 is: 12,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.65 : 30,316.64 = 8,355.98 : x
  2. Step 2: Convert to fraction form
    20,208.65/30,316.64 = 8,355.98/x
  3. Step 3: Cross multiply
    20,208.65x = 30,316.64 × 8,355.98
  4. Step 4: Simplify right side
    20,208.65x = 253,325,195.73
  5. Step 5: Solve for x
    x = 253,325,195.73/20,208.65
  6. Step 6: Final answer
    x = 12,535.48

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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.