Home / 22,221.71-30,666.44-13,267.54

Finding the Fourth Proportional to 22,221.71, 30,666.44 and 13,267.54

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Solution

The fourth proportional to 22,221.71, 30,666.44 and 13,267.54 is: 18,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.71 : 30,666.44 = 13,267.54 : x
  2. Step 2: Convert to fraction form
    22,221.71/30,666.44 = 13,267.54/x
  3. Step 3: Cross multiply
    22,221.71x = 30,666.44 × 13,267.54
  4. Step 4: Simplify right side
    22,221.71x = 406,868,153.02
  5. Step 5: Solve for x
    x = 406,868,153.02/22,221.71
  6. Step 6: Final answer
    x = 18,309.49

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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.