Home / 39,912.60-55,077.12-22,007.64

Finding the Fourth Proportional to 39,912.60, 55,077.12 and 22,007.64

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Solution

The fourth proportional to 39,912.60, 55,077.12 and 22,007.64 is: 30,369.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.60 : 55,077.12 = 22,007.64 : x
  2. Step 2: Convert to fraction form
    39,912.60/55,077.12 = 22,007.64/x
  3. Step 3: Cross multiply
    39,912.60x = 55,077.12 × 22,007.64
  4. Step 4: Simplify right side
    39,912.60x = 1,212,117,429.20
  5. Step 5: Solve for x
    x = 1,212,117,429.20/39,912.60
  6. Step 6: Final answer
    x = 30,369.29

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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.