Home / 28,882.10-43,304.46-18,991.40

Finding the Fourth Proportional to 28,882.10, 43,304.46 and 18,991.40

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Solution

The fourth proportional to 28,882.10, 43,304.46 and 18,991.40 is: 28,474.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.10 : 43,304.46 = 18,991.40 : x
  2. Step 2: Convert to fraction form
    28,882.10/43,304.46 = 18,991.40/x
  3. Step 3: Cross multiply
    28,882.10x = 43,304.46 × 18,991.40
  4. Step 4: Simplify right side
    28,882.10x = 822,412,033.90
  5. Step 5: Solve for x
    x = 822,412,033.90/28,882.10
  6. Step 6: Final answer
    x = 28,474.80

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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.