Home / 20,196.90-30,298.83-7,718.04

Finding the Fourth Proportional to 20,196.90, 30,298.83 and 7,718.04

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Solution

The fourth proportional to 20,196.90, 30,298.83 and 7,718.04 is: 11,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.90 : 30,298.83 = 7,718.04 : x
  2. Step 2: Convert to fraction form
    20,196.90/30,298.83 = 7,718.04/x
  3. Step 3: Cross multiply
    20,196.90x = 30,298.83 × 7,718.04
  4. Step 4: Simplify right side
    20,196.90x = 233,847,581.89
  5. Step 5: Solve for x
    x = 233,847,581.89/20,196.90
  6. Step 6: Final answer
    x = 11,578.39

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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.