Home / 18,389.44-25,400.66-15,994.68

Finding the Fourth Proportional to 18,389.44, 25,400.66 and 15,994.68

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Solution

The fourth proportional to 18,389.44, 25,400.66 and 15,994.68 is: 22,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.44 : 25,400.66 = 15,994.68 : x
  2. Step 2: Convert to fraction form
    18,389.44/25,400.66 = 15,994.68/x
  3. Step 3: Cross multiply
    18,389.44x = 25,400.66 × 15,994.68
  4. Step 4: Simplify right side
    18,389.44x = 406,275,428.49
  5. Step 5: Solve for x
    x = 406,275,428.49/18,389.44
  6. Step 6: Final answer
    x = 22,092.87

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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.