Home / 20,175.97-30,232.35-12,764.77

Finding the Fourth Proportional to 20,175.97, 30,232.35 and 12,764.77

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Solution

The fourth proportional to 20,175.97, 30,232.35 and 12,764.77 is: 19,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.97 : 30,232.35 = 12,764.77 : x
  2. Step 2: Convert to fraction form
    20,175.97/30,232.35 = 12,764.77/x
  3. Step 3: Cross multiply
    20,175.97x = 30,232.35 × 12,764.77
  4. Step 4: Simplify right side
    20,175.97x = 385,908,994.31
  5. Step 5: Solve for x
    x = 385,908,994.31/20,175.97
  6. Step 6: Final answer
    x = 19,127.16

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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.