Home / 18,929.01-28,396.57-5,778.30

Finding the Fourth Proportional to 18,929.01, 28,396.57 and 5,778.30

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Solution

The fourth proportional to 18,929.01, 28,396.57 and 5,778.30 is: 8,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.01 : 28,396.57 = 5,778.30 : x
  2. Step 2: Convert to fraction form
    18,929.01/28,396.57 = 5,778.30/x
  3. Step 3: Cross multiply
    18,929.01x = 28,396.57 × 5,778.30
  4. Step 4: Simplify right side
    18,929.01x = 164,083,900.43
  5. Step 5: Solve for x
    x = 164,083,900.43/18,929.01
  6. Step 6: Final answer
    x = 8,668.38

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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.