Home / 19,983.96-27,581.64-12,433.68

Finding the Fourth Proportional to 19,983.96, 27,581.64 and 12,433.68

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Solution

The fourth proportional to 19,983.96, 27,581.64 and 12,433.68 is: 17,160.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.96 : 27,581.64 = 12,433.68 : x
  2. Step 2: Convert to fraction form
    19,983.96/27,581.64 = 12,433.68/x
  3. Step 3: Cross multiply
    19,983.96x = 27,581.64 × 12,433.68
  4. Step 4: Simplify right side
    19,983.96x = 342,941,285.64
  5. Step 5: Solve for x
    x = 342,941,285.64/19,983.96
  6. Step 6: Final answer
    x = 17,160.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.