Home / 20,362.59-30,456.41-18,126.99

Finding the Fourth Proportional to 20,362.59, 30,456.41 and 18,126.99

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Solution

The fourth proportional to 20,362.59, 30,456.41 and 18,126.99 is: 27,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.59 : 30,456.41 = 18,126.99 : x
  2. Step 2: Convert to fraction form
    20,362.59/30,456.41 = 18,126.99/x
  3. Step 3: Cross multiply
    20,362.59x = 30,456.41 × 18,126.99
  4. Step 4: Simplify right side
    20,362.59x = 552,082,948.87
  5. Step 5: Solve for x
    x = 552,082,948.87/20,362.59
  6. Step 6: Final answer
    x = 27,112.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.