Home / 21,033.56-29,029.66-12,650.06

Finding the Fourth Proportional to 21,033.56, 29,029.66 and 12,650.06

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Solution

The fourth proportional to 21,033.56, 29,029.66 and 12,650.06 is: 17,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.56 : 29,029.66 = 12,650.06 : x
  2. Step 2: Convert to fraction form
    21,033.56/29,029.66 = 12,650.06/x
  3. Step 3: Cross multiply
    21,033.56x = 29,029.66 × 12,650.06
  4. Step 4: Simplify right side
    21,033.56x = 367,226,940.78
  5. Step 5: Solve for x
    x = 367,226,940.78/21,033.56
  6. Step 6: Final answer
    x = 17,459.10

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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.