Home / 40,053.45-55,274.94-21,905.25

Finding the Fourth Proportional to 40,053.45, 55,274.94 and 21,905.25

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Solution

The fourth proportional to 40,053.45, 55,274.94 and 21,905.25 is: 30,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,053.45 : 55,274.94 = 21,905.25 : x
  2. Step 2: Convert to fraction form
    40,053.45/55,274.94 = 21,905.25/x
  3. Step 3: Cross multiply
    40,053.45x = 55,274.94 × 21,905.25
  4. Step 4: Simplify right side
    40,053.45x = 1,210,811,379.44
  5. Step 5: Solve for x
    x = 1,210,811,379.44/40,053.45
  6. Step 6: Final answer
    x = 30,229.89

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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.