Home / 20,040.40-27,646.92-12,077.92

Finding the Fourth Proportional to 20,040.40, 27,646.92 and 12,077.92

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Solution

The fourth proportional to 20,040.40, 27,646.92 and 12,077.92 is: 16,662.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.40 : 27,646.92 = 12,077.92 : x
  2. Step 2: Convert to fraction form
    20,040.40/27,646.92 = 12,077.92/x
  3. Step 3: Cross multiply
    20,040.40x = 27,646.92 × 12,077.92
  4. Step 4: Simplify right side
    20,040.40x = 333,917,288.01
  5. Step 5: Solve for x
    x = 333,917,288.01/20,040.40
  6. Step 6: Final answer
    x = 16,662.21

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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.