Home / 40,048.14-55,266.78-21,899.38

Finding the Fourth Proportional to 40,048.14, 55,266.78 and 21,899.38

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Solution

The fourth proportional to 40,048.14, 55,266.78 and 21,899.38 is: 30,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,048.14 : 55,266.78 = 21,899.38 : x
  2. Step 2: Convert to fraction form
    40,048.14/55,266.78 = 21,899.38/x
  3. Step 3: Cross multiply
    40,048.14x = 55,266.78 × 21,899.38
  4. Step 4: Simplify right side
    40,048.14x = 1,210,308,216.60
  5. Step 5: Solve for x
    x = 1,210,308,216.60/40,048.14
  6. Step 6: Final answer
    x = 30,221.33

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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.