Home / 20,767.41-31,145.37-5,771.10

Finding the Fourth Proportional to 20,767.41, 31,145.37 and 5,771.10

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Solution

The fourth proportional to 20,767.41, 31,145.37 and 5,771.10 is: 8,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.41 : 31,145.37 = 5,771.10 : x
  2. Step 2: Convert to fraction form
    20,767.41/31,145.37 = 5,771.10/x
  3. Step 3: Cross multiply
    20,767.41x = 31,145.37 × 5,771.10
  4. Step 4: Simplify right side
    20,767.41x = 179,743,044.81
  5. Step 5: Solve for x
    x = 179,743,044.81/20,767.41
  6. Step 6: Final answer
    x = 8,655.05

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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.