Home / 20,159.88-30,175.10-10,776.44

Finding the Fourth Proportional to 20,159.88, 30,175.10 and 10,776.44

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Solution

The fourth proportional to 20,159.88, 30,175.10 and 10,776.44 is: 16,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.88 : 30,175.10 = 10,776.44 : x
  2. Step 2: Convert to fraction form
    20,159.88/30,175.10 = 10,776.44/x
  3. Step 3: Cross multiply
    20,159.88x = 30,175.10 × 10,776.44
  4. Step 4: Simplify right side
    20,159.88x = 325,180,154.64
  5. Step 5: Solve for x
    x = 325,180,154.64/20,159.88
  6. Step 6: Final answer
    x = 16,130.06

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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.