Home / 40,133.41-55,384.12-21,984.22

Finding the Fourth Proportional to 40,133.41, 55,384.12 and 21,984.22

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Solution

The fourth proportional to 40,133.41, 55,384.12 and 21,984.22 is: 30,338.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,133.41 : 55,384.12 = 21,984.22 : x
  2. Step 2: Convert to fraction form
    40,133.41/55,384.12 = 21,984.22/x
  3. Step 3: Cross multiply
    40,133.41x = 55,384.12 × 21,984.22
  4. Step 4: Simplify right side
    40,133.41x = 1,217,576,401.67
  5. Step 5: Solve for x
    x = 1,217,576,401.67/40,133.41
  6. Step 6: Final answer
    x = 30,338.22

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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.