Home / 39,883.46-55,039.27-21,734.32

Finding the Fourth Proportional to 39,883.46, 55,039.27 and 21,734.32

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Solution

The fourth proportional to 39,883.46, 55,039.27 and 21,734.32 is: 29,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,883.46 : 55,039.27 = 21,734.32 : x
  2. Step 2: Convert to fraction form
    39,883.46/55,039.27 = 21,734.32/x
  3. Step 3: Cross multiply
    39,883.46x = 55,039.27 × 21,734.32
  4. Step 4: Simplify right side
    39,883.46x = 1,196,240,722.88
  5. Step 5: Solve for x
    x = 1,196,240,722.88/39,883.46
  6. Step 6: Final answer
    x = 29,993.41

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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.