Home / 22,221.59-30,666.26-13,267.42

Finding the Fourth Proportional to 22,221.59, 30,666.26 and 13,267.42

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Solution

The fourth proportional to 22,221.59, 30,666.26 and 13,267.42 is: 18,309.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.59 : 30,666.26 = 13,267.42 : x
  2. Step 2: Convert to fraction form
    22,221.59/30,666.26 = 13,267.42/x
  3. Step 3: Cross multiply
    22,221.59x = 30,666.26 × 13,267.42
  4. Step 4: Simplify right side
    22,221.59x = 406,862,107.75
  5. Step 5: Solve for x
    x = 406,862,107.75/22,221.59
  6. Step 6: Final answer
    x = 18,309.32

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Half scale
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Double scale
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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.