Home / 28,230.09-38,975.91-19,274.34

Finding the Fourth Proportional to 28,230.09, 38,975.91 and 19,274.34

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Solution

The fourth proportional to 28,230.09, 38,975.91 and 19,274.34 is: 26,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.09 : 38,975.91 = 19,274.34 : x
  2. Step 2: Convert to fraction form
    28,230.09/38,975.91 = 19,274.34/x
  3. Step 3: Cross multiply
    28,230.09x = 38,975.91 × 19,274.34
  4. Step 4: Simplify right side
    28,230.09x = 751,234,941.15
  5. Step 5: Solve for x
    x = 751,234,941.15/28,230.09
  6. Step 6: Final answer
    x = 26,611.14

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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.