Home / 21,033.20-31,595.62-12,717.14

Finding the Fourth Proportional to 21,033.20, 31,595.62 and 12,717.14

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Solution

The fourth proportional to 21,033.20, 31,595.62 and 12,717.14 is: 19,103.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.20 : 31,595.62 = 12,717.14 : x
  2. Step 2: Convert to fraction form
    21,033.20/31,595.62 = 12,717.14/x
  3. Step 3: Cross multiply
    21,033.20x = 31,595.62 × 12,717.14
  4. Step 4: Simplify right side
    21,033.20x = 401,805,922.93
  5. Step 5: Solve for x
    x = 401,805,922.93/21,033.20
  6. Step 6: Final answer
    x = 19,103.41

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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.