Home / 19,989.12-27,595.92-12,033.12

Finding the Fourth Proportional to 19,989.12, 27,595.92 and 12,033.12

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Solution

The fourth proportional to 19,989.12, 27,595.92 and 12,033.12 is: 16,612.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.12 : 27,595.92 = 12,033.12 : x
  2. Step 2: Convert to fraction form
    19,989.12/27,595.92 = 12,033.12/x
  3. Step 3: Cross multiply
    19,989.12x = 27,595.92 × 12,033.12
  4. Step 4: Simplify right side
    19,989.12x = 332,065,016.87
  5. Step 5: Solve for x
    x = 332,065,016.87/19,989.12
  6. Step 6: Final answer
    x = 16,612.29

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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.