Home / 39,943.56-55,129.32-23,176.56

Finding the Fourth Proportional to 39,943.56, 55,129.32 and 23,176.56

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Solution

The fourth proportional to 39,943.56, 55,129.32 and 23,176.56 is: 31,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,943.56 : 55,129.32 = 23,176.56 : x
  2. Step 2: Convert to fraction form
    39,943.56/55,129.32 = 23,176.56/x
  3. Step 3: Cross multiply
    39,943.56x = 55,129.32 × 23,176.56
  4. Step 4: Simplify right side
    39,943.56x = 1,277,707,992.74
  5. Step 5: Solve for x
    x = 1,277,707,992.74/39,943.56
  6. Step 6: Final answer
    x = 31,987.83

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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.