Home / 20,951.36-31,423.04-6,160.96

Finding the Fourth Proportional to 20,951.36, 31,423.04 and 6,160.96

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Solution

The fourth proportional to 20,951.36, 31,423.04 and 6,160.96 is: 9,240.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.36 : 31,423.04 = 6,160.96 : x
  2. Step 2: Convert to fraction form
    20,951.36/31,423.04 = 6,160.96/x
  3. Step 3: Cross multiply
    20,951.36x = 31,423.04 × 6,160.96
  4. Step 4: Simplify right side
    20,951.36x = 193,596,092.52
  5. Step 5: Solve for x
    x = 193,596,092.52/20,951.36
  6. Step 6: Final answer
    x = 9,240.26

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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.