Home / 20,607.19-30,834.18-12,291.73

Finding the Fourth Proportional to 20,607.19, 30,834.18 and 12,291.73

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Solution

The fourth proportional to 20,607.19, 30,834.18 and 12,291.73 is: 18,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.19 : 30,834.18 = 12,291.73 : x
  2. Step 2: Convert to fraction form
    20,607.19/30,834.18 = 12,291.73/x
  3. Step 3: Cross multiply
    20,607.19x = 30,834.18 × 12,291.73
  4. Step 4: Simplify right side
    20,607.19x = 379,005,415.33
  5. Step 5: Solve for x
    x = 379,005,415.33/20,607.19
  6. Step 6: Final answer
    x = 18,391.90

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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.