Home / 27,724.32-38,283.84-20,213.28

Finding the Fourth Proportional to 27,724.32, 38,283.84 and 20,213.28

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Solution

The fourth proportional to 27,724.32, 38,283.84 and 20,213.28 is: 27,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,724.32 : 38,283.84 = 20,213.28 : x
  2. Step 2: Convert to fraction form
    27,724.32/38,283.84 = 20,213.28/x
  3. Step 3: Cross multiply
    27,724.32x = 38,283.84 × 20,213.28
  4. Step 4: Simplify right side
    27,724.32x = 773,841,977.40
  5. Step 5: Solve for x
    x = 773,841,977.40/27,724.32
  6. Step 6: Final answer
    x = 27,912.03

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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.