Home / 42,661.26-63,999.18-18,977.22

Finding the Fourth Proportional to 42,661.26, 63,999.18 and 18,977.22

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Solution

The fourth proportional to 42,661.26, 63,999.18 and 18,977.22 is: 28,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,661.26 : 63,999.18 = 18,977.22 : x
  2. Step 2: Convert to fraction form
    42,661.26/63,999.18 = 18,977.22/x
  3. Step 3: Cross multiply
    42,661.26x = 63,999.18 × 18,977.22
  4. Step 4: Simplify right side
    42,661.26x = 1,214,526,518.68
  5. Step 5: Solve for x
    x = 1,214,526,518.68/42,661.26
  6. Step 6: Final answer
    x = 28,469.07

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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.