Home / 26,725.35-40,128.50-21,223.31

Finding the Fourth Proportional to 26,725.35, 40,128.50 and 21,223.31

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Solution

The fourth proportional to 26,725.35, 40,128.50 and 21,223.31 is: 31,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,725.35 : 40,128.50 = 21,223.31 : x
  2. Step 2: Convert to fraction form
    26,725.35/40,128.50 = 21,223.31/x
  3. Step 3: Cross multiply
    26,725.35x = 40,128.50 × 21,223.31
  4. Step 4: Simplify right side
    26,725.35x = 851,659,447.75
  5. Step 5: Solve for x
    x = 851,659,447.75/26,725.35
  6. Step 6: Final answer
    x = 31,867.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.