Home / 20,015.55-27,611.01-12,460.68

Finding the Fourth Proportional to 20,015.55, 27,611.01 and 12,460.68

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Solution

The fourth proportional to 20,015.55, 27,611.01 and 12,460.68 is: 17,189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.55 : 27,611.01 = 12,460.68 : x
  2. Step 2: Convert to fraction form
    20,015.55/27,611.01 = 12,460.68/x
  3. Step 3: Cross multiply
    20,015.55x = 27,611.01 × 12,460.68
  4. Step 4: Simplify right side
    20,015.55x = 344,051,960.09
  5. Step 5: Solve for x
    x = 344,051,960.09/20,015.55
  6. Step 6: Final answer
    x = 17,189.23

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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.