Home / 20,014.80-27,620.40-12,057.36

Finding the Fourth Proportional to 20,014.80, 27,620.40 and 12,057.36

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Solution

The fourth proportional to 20,014.80, 27,620.40 and 12,057.36 is: 16,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.80 : 27,620.40 = 12,057.36 : x
  2. Step 2: Convert to fraction form
    20,014.80/27,620.40 = 12,057.36/x
  3. Step 3: Cross multiply
    20,014.80x = 27,620.40 × 12,057.36
  4. Step 4: Simplify right side
    20,014.80x = 333,029,106.14
  5. Step 5: Solve for x
    x = 333,029,106.14/20,014.80
  6. Step 6: Final answer
    x = 16,639.14

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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.