Home / 22,163.04-30,588.80-21,166.56

Finding the Fourth Proportional to 22,163.04, 30,588.80 and 21,166.56

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Solution

The fourth proportional to 22,163.04, 30,588.80 and 21,166.56 is: 29,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.04 : 30,588.80 = 21,166.56 : x
  2. Step 2: Convert to fraction form
    22,163.04/30,588.80 = 21,166.56/x
  3. Step 3: Cross multiply
    22,163.04x = 30,588.80 × 21,166.56
  4. Step 4: Simplify right side
    22,163.04x = 647,459,564.70
  5. Step 5: Solve for x
    x = 647,459,564.70/22,163.04
  6. Step 6: Final answer
    x = 29,213.48

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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.