Home / 20,079.82-30,165.90-14,170.31

Finding the Fourth Proportional to 20,079.82, 30,165.90 and 14,170.31

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Solution

The fourth proportional to 20,079.82, 30,165.90 and 14,170.31 is: 21,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.82 : 30,165.90 = 14,170.31 : x
  2. Step 2: Convert to fraction form
    20,079.82/30,165.90 = 14,170.31/x
  3. Step 3: Cross multiply
    20,079.82x = 30,165.90 × 14,170.31
  4. Step 4: Simplify right side
    20,079.82x = 427,460,154.43
  5. Step 5: Solve for x
    x = 427,460,154.43/20,079.82
  6. Step 6: Final answer
    x = 21,288.05

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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.