Home / 39,379.45-54,342.44-22,385.55

Finding the Fourth Proportional to 39,379.45, 54,342.44 and 22,385.55

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Solution

The fourth proportional to 39,379.45, 54,342.44 and 22,385.55 is: 30,891.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379.45 : 54,342.44 = 22,385.55 : x
  2. Step 2: Convert to fraction form
    39,379.45/54,342.44 = 22,385.55/x
  3. Step 3: Cross multiply
    39,379.45x = 54,342.44 × 22,385.55
  4. Step 4: Simplify right side
    39,379.45x = 1,216,485,024.10
  5. Step 5: Solve for x
    x = 1,216,485,024.10/39,379.45
  6. Step 6: Final answer
    x = 30,891.37

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Half scale
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Double scale
Find fourth proportional to 39,380.45, 54,343.81 and 22,386.55
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.