Home / 20,017.09-30,027.20-11,697.97

Finding the Fourth Proportional to 20,017.09, 30,027.20 and 11,697.97

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Solution

The fourth proportional to 20,017.09, 30,027.20 and 11,697.97 is: 17,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.09 : 30,027.20 = 11,697.97 : x
  2. Step 2: Convert to fraction form
    20,017.09/30,027.20 = 11,697.97/x
  3. Step 3: Cross multiply
    20,017.09x = 30,027.20 × 11,697.97
  4. Step 4: Simplify right side
    20,017.09x = 351,257,284.78
  5. Step 5: Solve for x
    x = 351,257,284.78/20,017.09
  6. Step 6: Final answer
    x = 17,547.87

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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.