Home / 28,479.03-42,733.86-11,850.54

Finding the Fourth Proportional to 28,479.03, 42,733.86 and 11,850.54

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Solution

The fourth proportional to 28,479.03, 42,733.86 and 11,850.54 is: 17,782.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.03 : 42,733.86 = 11,850.54 : x
  2. Step 2: Convert to fraction form
    28,479.03/42,733.86 = 11,850.54/x
  3. Step 3: Cross multiply
    28,479.03x = 42,733.86 × 11,850.54
  4. Step 4: Simplify right side
    28,479.03x = 506,419,317.28
  5. Step 5: Solve for x
    x = 506,419,317.28/28,479.03
  6. Step 6: Final answer
    x = 17,782.18

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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.