Home / 21,994.56-30,357.45-18,451.62

Finding the Fourth Proportional to 21,994.56, 30,357.45 and 18,451.62

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Solution

The fourth proportional to 21,994.56, 30,357.45 and 18,451.62 is: 25,467.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,994.56 : 30,357.45 = 18,451.62 : x
  2. Step 2: Convert to fraction form
    21,994.56/30,357.45 = 18,451.62/x
  3. Step 3: Cross multiply
    21,994.56x = 30,357.45 × 18,451.62
  4. Step 4: Simplify right side
    21,994.56x = 560,144,131.57
  5. Step 5: Solve for x
    x = 560,144,131.57/21,994.56
  6. Step 6: Final answer
    x = 25,467.39

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Half scale
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Double scale
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Similar ratio
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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.