Home / 20,355.44-30,533-12,092.72

Finding the Fourth Proportional to 20,355.44, 30,533 and 12,092.72

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Solution

The fourth proportional to 20,355.44, 30,533 and 12,092.72 is: 18,138.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.44 : 30,533 = 12,092.72 : x
  2. Step 2: Convert to fraction form
    20,355.44/30,533 = 12,092.72/x
  3. Step 3: Cross multiply
    20,355.44x = 30,533 × 12,092.72
  4. Step 4: Simplify right side
    20,355.44x = 369,227,019.76
  5. Step 5: Solve for x
    x = 369,227,019.76/20,355.44
  6. Step 6: Final answer
    x = 18,138.98

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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.