Home / 42,200.73-63,282.63-20,020.43

Finding the Fourth Proportional to 42,200.73, 63,282.63 and 20,020.43

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Solution

The fourth proportional to 42,200.73, 63,282.63 and 20,020.43 is: 30,021.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,200.73 : 63,282.63 = 20,020.43 : x
  2. Step 2: Convert to fraction form
    42,200.73/63,282.63 = 20,020.43/x
  3. Step 3: Cross multiply
    42,200.73x = 63,282.63 × 20,020.43
  4. Step 4: Simplify right side
    42,200.73x = 1,266,945,697.41
  5. Step 5: Solve for x
    x = 1,266,945,697.41/42,200.73
  6. Step 6: Final answer
    x = 30,021.89

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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.