Home / 21,170.04-29,208.01-12,216.37

Finding the Fourth Proportional to 21,170.04, 29,208.01 and 12,216.37

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Solution

The fourth proportional to 21,170.04, 29,208.01 and 12,216.37 is: 16,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,170.04 : 29,208.01 = 12,216.37 : x
  2. Step 2: Convert to fraction form
    21,170.04/29,208.01 = 12,216.37/x
  3. Step 3: Cross multiply
    21,170.04x = 29,208.01 × 12,216.37
  4. Step 4: Simplify right side
    21,170.04x = 356,815,857.12
  5. Step 5: Solve for x
    x = 356,815,857.12/21,170.04
  6. Step 6: Final answer
    x = 16,854.76

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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.