Home / 20,076.63-27,706.47-12,117.30

Finding the Fourth Proportional to 20,076.63, 27,706.47 and 12,117.30

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Solution

The fourth proportional to 20,076.63, 27,706.47 and 12,117.30 is: 16,722.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.63 : 27,706.47 = 12,117.30 : x
  2. Step 2: Convert to fraction form
    20,076.63/27,706.47 = 12,117.30/x
  3. Step 3: Cross multiply
    20,076.63x = 27,706.47 × 12,117.30
  4. Step 4: Simplify right side
    20,076.63x = 335,727,608.93
  5. Step 5: Solve for x
    x = 335,727,608.93/20,076.63
  6. Step 6: Final answer
    x = 16,722.31

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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.