Home / 40,037.76-55,250.64-22,131.60

Finding the Fourth Proportional to 40,037.76, 55,250.64 and 22,131.60

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Solution

The fourth proportional to 40,037.76, 55,250.64 and 22,131.60 is: 30,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,037.76 : 55,250.64 = 22,131.60 : x
  2. Step 2: Convert to fraction form
    40,037.76/55,250.64 = 22,131.60/x
  3. Step 3: Cross multiply
    40,037.76x = 55,250.64 × 22,131.60
  4. Step 4: Simplify right side
    40,037.76x = 1,222,785,064.22
  5. Step 5: Solve for x
    x = 1,222,785,064.22/40,037.76
  6. Step 6: Final answer
    x = 30,540.80

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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.