Home / 28,229.84-38,975.56-19,274.08

Finding the Fourth Proportional to 28,229.84, 38,975.56 and 19,274.08

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Solution

The fourth proportional to 28,229.84, 38,975.56 and 19,274.08 is: 26,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.84 : 38,975.56 = 19,274.08 : x
  2. Step 2: Convert to fraction form
    28,229.84/38,975.56 = 19,274.08/x
  3. Step 3: Cross multiply
    28,229.84x = 38,975.56 × 19,274.08
  4. Step 4: Simplify right side
    28,229.84x = 751,218,061.48
  5. Step 5: Solve for x
    x = 751,218,061.48/28,229.84
  6. Step 6: Final answer
    x = 26,610.78

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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.