Home / 20,271.09-30,408.24-7,126.41

Finding the Fourth Proportional to 20,271.09, 30,408.24 and 7,126.41

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Solution

The fourth proportional to 20,271.09, 30,408.24 and 7,126.41 is: 10,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,271.09 : 30,408.24 = 7,126.41 : x
  2. Step 2: Convert to fraction form
    20,271.09/30,408.24 = 7,126.41/x
  3. Step 3: Cross multiply
    20,271.09x = 30,408.24 × 7,126.41
  4. Step 4: Simplify right side
    20,271.09x = 216,701,585.62
  5. Step 5: Solve for x
    x = 216,701,585.62/20,271.09
  6. Step 6: Final answer
    x = 10,690.18

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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.