Home / 28,796.28-43,194.45-18,979.40

Finding the Fourth Proportional to 28,796.28, 43,194.45 and 18,979.40

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Solution

The fourth proportional to 28,796.28, 43,194.45 and 18,979.40 is: 28,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.28 : 43,194.45 = 18,979.40 : x
  2. Step 2: Convert to fraction form
    28,796.28/43,194.45 = 18,979.40/x
  3. Step 3: Cross multiply
    28,796.28x = 43,194.45 × 18,979.40
  4. Step 4: Simplify right side
    28,796.28x = 819,804,528.36
  5. Step 5: Solve for x
    x = 819,804,528.36/28,796.28
  6. Step 6: Final answer
    x = 28,469.11

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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.