Home / 39,942.90-55,120.80-22,038.03

Finding the Fourth Proportional to 39,942.90, 55,120.80 and 22,038.03

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Solution

The fourth proportional to 39,942.90, 55,120.80 and 22,038.03 is: 30,412.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,942.90 : 55,120.80 = 22,038.03 : x
  2. Step 2: Convert to fraction form
    39,942.90/55,120.80 = 22,038.03/x
  3. Step 3: Cross multiply
    39,942.90x = 55,120.80 × 22,038.03
  4. Step 4: Simplify right side
    39,942.90x = 1,214,753,844.02
  5. Step 5: Solve for x
    x = 1,214,753,844.02/39,942.90
  6. Step 6: Final answer
    x = 30,412.26

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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.