Home / 20,328.62-30,471.32-9,792.06

Finding the Fourth Proportional to 20,328.62, 30,471.32 and 9,792.06

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Solution

The fourth proportional to 20,328.62, 30,471.32 and 9,792.06 is: 14,677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.62 : 30,471.32 = 9,792.06 : x
  2. Step 2: Convert to fraction form
    20,328.62/30,471.32 = 9,792.06/x
  3. Step 3: Cross multiply
    20,328.62x = 30,471.32 × 9,792.06
  4. Step 4: Simplify right side
    20,328.62x = 298,376,944.76
  5. Step 5: Solve for x
    x = 298,376,944.76/20,328.62
  6. Step 6: Final answer
    x = 14,677.68

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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.