Home / 21,598.10-29,805.15-12,166.64

Finding the Fourth Proportional to 21,598.10, 29,805.15 and 12,166.64

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Solution

The fourth proportional to 21,598.10, 29,805.15 and 12,166.64 is: 16,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.10 : 29,805.15 = 12,166.64 : x
  2. Step 2: Convert to fraction form
    21,598.10/29,805.15 = 12,166.64/x
  3. Step 3: Cross multiply
    21,598.10x = 29,805.15 × 12,166.64
  4. Step 4: Simplify right side
    21,598.10x = 362,628,530.20
  5. Step 5: Solve for x
    x = 362,628,530.20/21,598.10
  6. Step 6: Final answer
    x = 16,789.83

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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.