Home / 20,088.12-30,131.64-6,941.88

Finding the Fourth Proportional to 20,088.12, 30,131.64 and 6,941.88

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Solution

The fourth proportional to 20,088.12, 30,131.64 and 6,941.88 is: 10,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.12 : 30,131.64 = 6,941.88 : x
  2. Step 2: Convert to fraction form
    20,088.12/30,131.64 = 6,941.88/x
  3. Step 3: Cross multiply
    20,088.12x = 30,131.64 × 6,941.88
  4. Step 4: Simplify right side
    20,088.12x = 209,170,229.08
  5. Step 5: Solve for x
    x = 209,170,229.08/20,088.12
  6. Step 6: Final answer
    x = 10,412.63

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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.