Home / 28,996.67-43,420.55-20,099.30

Finding the Fourth Proportional to 28,996.67, 43,420.55 and 20,099.30

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Solution

The fourth proportional to 28,996.67, 43,420.55 and 20,099.30 is: 30,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.67 : 43,420.55 = 20,099.30 : x
  2. Step 2: Convert to fraction form
    28,996.67/43,420.55 = 20,099.30/x
  3. Step 3: Cross multiply
    28,996.67x = 43,420.55 × 20,099.30
  4. Step 4: Simplify right side
    28,996.67x = 872,722,343.02
  5. Step 5: Solve for x
    x = 872,722,343.02/28,996.67
  6. Step 6: Final answer
    x = 30,097.34

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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.