Home / 40,127.40-55,371.83-22,220.64

Finding the Fourth Proportional to 40,127.40, 55,371.83 and 22,220.64

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Solution

The fourth proportional to 40,127.40, 55,371.83 and 22,220.64 is: 30,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127.40 : 55,371.83 = 22,220.64 : x
  2. Step 2: Convert to fraction form
    40,127.40/55,371.83 = 22,220.64/x
  3. Step 3: Cross multiply
    40,127.40x = 55,371.83 × 22,220.64
  4. Step 4: Simplify right side
    40,127.40x = 1,230,397,389.47
  5. Step 5: Solve for x
    x = 1,230,397,389.47/40,127.40
  6. Step 6: Final answer
    x = 30,662.28

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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.