Home / 39,912.29-55,077.76-22,007.29

Finding the Fourth Proportional to 39,912.29, 55,077.76 and 22,007.29

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Solution

The fourth proportional to 39,912.29, 55,077.76 and 22,007.29 is: 30,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.29 : 55,077.76 = 22,007.29 : x
  2. Step 2: Convert to fraction form
    39,912.29/55,077.76 = 22,007.29/x
  3. Step 3: Cross multiply
    39,912.29x = 55,077.76 × 22,007.29
  4. Step 4: Simplify right side
    39,912.29x = 1,212,112,429.58
  5. Step 5: Solve for x
    x = 1,212,112,429.58/39,912.29
  6. Step 6: Final answer
    x = 30,369.40

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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.