Home / 28,104.36-42,151.68-9,636.36

Finding the Fourth Proportional to 28,104.36, 42,151.68 and 9,636.36

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Solution

The fourth proportional to 28,104.36, 42,151.68 and 9,636.36 is: 14,452.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.36 : 42,151.68 = 9,636.36 : x
  2. Step 2: Convert to fraction form
    28,104.36/42,151.68 = 9,636.36/x
  3. Step 3: Cross multiply
    28,104.36x = 42,151.68 × 9,636.36
  4. Step 4: Simplify right side
    28,104.36x = 406,188,763.08
  5. Step 5: Solve for x
    x = 406,188,763.08/28,104.36
  6. Step 6: Final answer
    x = 14,452.87

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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.