Home / 20,261.70-27,975.97-13,095.86

Finding the Fourth Proportional to 20,261.70, 27,975.97 and 13,095.86

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Solution

The fourth proportional to 20,261.70, 27,975.97 and 13,095.86 is: 18,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.70 : 27,975.97 = 13,095.86 : x
  2. Step 2: Convert to fraction form
    20,261.70/27,975.97 = 13,095.86/x
  3. Step 3: Cross multiply
    20,261.70x = 27,975.97 × 13,095.86
  4. Step 4: Simplify right side
    20,261.70x = 366,369,318.77
  5. Step 5: Solve for x
    x = 366,369,318.77/20,261.70
  6. Step 6: Final answer
    x = 18,081.86

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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.