Home / 20,042.64-30,055.08-10,680.91

Finding the Fourth Proportional to 20,042.64, 30,055.08 and 10,680.91

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Solution

The fourth proportional to 20,042.64, 30,055.08 and 10,680.91 is: 16,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.64 : 30,055.08 = 10,680.91 : x
  2. Step 2: Convert to fraction form
    20,042.64/30,055.08 = 10,680.91/x
  3. Step 3: Cross multiply
    20,042.64x = 30,055.08 × 10,680.91
  4. Step 4: Simplify right side
    20,042.64x = 321,015,648.38
  5. Step 5: Solve for x
    x = 321,015,648.38/20,042.64
  6. Step 6: Final answer
    x = 16,016.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.