Home / 20,095.26-27,731.40-12,135.92

Finding the Fourth Proportional to 20,095.26, 27,731.40 and 12,135.92

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Solution

The fourth proportional to 20,095.26, 27,731.40 and 12,135.92 is: 16,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.26 : 27,731.40 = 12,135.92 : x
  2. Step 2: Convert to fraction form
    20,095.26/27,731.40 = 12,135.92/x
  3. Step 3: Cross multiply
    20,095.26x = 27,731.40 × 12,135.92
  4. Step 4: Simplify right side
    20,095.26x = 336,546,051.89
  5. Step 5: Solve for x
    x = 336,546,051.89/20,095.26
  6. Step 6: Final answer
    x = 16,747.53

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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.