Home / 20,769.64-31,149.80-5,975.26

Finding the Fourth Proportional to 20,769.64, 31,149.80 and 5,975.26

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Solution

The fourth proportional to 20,769.64, 31,149.80 and 5,975.26 is: 8,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769.64 : 31,149.80 = 5,975.26 : x
  2. Step 2: Convert to fraction form
    20,769.64/31,149.80 = 5,975.26/x
  3. Step 3: Cross multiply
    20,769.64x = 31,149.80 × 5,975.26
  4. Step 4: Simplify right side
    20,769.64x = 186,128,153.95
  5. Step 5: Solve for x
    x = 186,128,153.95/20,769.64
  6. Step 6: Final answer
    x = 8,961.55

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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.