Home / 21,563.49-29,758.56-12,132.03

Finding the Fourth Proportional to 21,563.49, 29,758.56 and 12,132.03

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Solution

The fourth proportional to 21,563.49, 29,758.56 and 12,132.03 is: 16,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.49 : 29,758.56 = 12,132.03 : x
  2. Step 2: Convert to fraction form
    21,563.49/29,758.56 = 12,132.03/x
  3. Step 3: Cross multiply
    21,563.49x = 29,758.56 × 12,132.03
  4. Step 4: Simplify right side
    21,563.49x = 361,031,742.68
  5. Step 5: Solve for x
    x = 361,031,742.68/21,563.49
  6. Step 6: Final answer
    x = 16,742.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.