Home / 20,772.07-31,160.84-6,727.28

Finding the Fourth Proportional to 20,772.07, 31,160.84 and 6,727.28

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Solution

The fourth proportional to 20,772.07, 31,160.84 and 6,727.28 is: 10,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.07 : 31,160.84 = 6,727.28 : x
  2. Step 2: Convert to fraction form
    20,772.07/31,160.84 = 6,727.28/x
  3. Step 3: Cross multiply
    20,772.07x = 31,160.84 × 6,727.28
  4. Step 4: Simplify right side
    20,772.07x = 209,627,506.27
  5. Step 5: Solve for x
    x = 209,627,506.27/20,772.07
  6. Step 6: Final answer
    x = 10,091.80

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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.