Home / 42,855.12-64,284.57-13,273.56

Finding the Fourth Proportional to 42,855.12, 64,284.57 and 13,273.56

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Solution

The fourth proportional to 42,855.12, 64,284.57 and 13,273.56 is: 19,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,855.12 : 64,284.57 = 13,273.56 : x
  2. Step 2: Convert to fraction form
    42,855.12/64,284.57 = 13,273.56/x
  3. Step 3: Cross multiply
    42,855.12x = 64,284.57 × 13,273.56
  4. Step 4: Simplify right side
    42,855.12x = 853,285,096.97
  5. Step 5: Solve for x
    x = 853,285,096.97/42,855.12
  6. Step 6: Final answer
    x = 19,910.93

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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.