Home / 28,982.80-43,474.20-21,984.40

Finding the Fourth Proportional to 28,982.80, 43,474.20 and 21,984.40

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Solution

The fourth proportional to 28,982.80, 43,474.20 and 21,984.40 is: 32,976.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,982.80 : 43,474.20 = 21,984.40 : x
  2. Step 2: Convert to fraction form
    28,982.80/43,474.20 = 21,984.40/x
  3. Step 3: Cross multiply
    28,982.80x = 43,474.20 × 21,984.40
  4. Step 4: Simplify right side
    28,982.80x = 955,754,202.48
  5. Step 5: Solve for x
    x = 955,754,202.48/28,982.80
  6. Step 6: Final answer
    x = 32,976.60

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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.