Home / 20,328.26-28,050.30-11,374.80

Finding the Fourth Proportional to 20,328.26, 28,050.30 and 11,374.80

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Solution

The fourth proportional to 20,328.26, 28,050.30 and 11,374.80 is: 15,695.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.26 : 28,050.30 = 11,374.80 : x
  2. Step 2: Convert to fraction form
    20,328.26/28,050.30 = 11,374.80/x
  3. Step 3: Cross multiply
    20,328.26x = 28,050.30 × 11,374.80
  4. Step 4: Simplify right side
    20,328.26x = 319,066,552.44
  5. Step 5: Solve for x
    x = 319,066,552.44/20,328.26
  6. Step 6: Final answer
    x = 15,695.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.