Home / 39,137.80-58,739.10-18,110.20

Finding the Fourth Proportional to 39,137.80, 58,739.10 and 18,110.20

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Solution

The fourth proportional to 39,137.80, 58,739.10 and 18,110.20 is: 27,180.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.80 : 58,739.10 = 18,110.20 : x
  2. Step 2: Convert to fraction form
    39,137.80/58,739.10 = 18,110.20/x
  3. Step 3: Cross multiply
    39,137.80x = 58,739.10 × 18,110.20
  4. Step 4: Simplify right side
    39,137.80x = 1,063,776,848.82
  5. Step 5: Solve for x
    x = 1,063,776,848.82/39,137.80
  6. Step 6: Final answer
    x = 27,180.29

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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.