Home / 21,198.08-29,253.12-12,245.24

Finding the Fourth Proportional to 21,198.08, 29,253.12 and 12,245.24

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Solution

The fourth proportional to 21,198.08, 29,253.12 and 12,245.24 is: 16,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.08 : 29,253.12 = 12,245.24 : x
  2. Step 2: Convert to fraction form
    21,198.08/29,253.12 = 12,245.24/x
  3. Step 3: Cross multiply
    21,198.08x = 29,253.12 × 12,245.24
  4. Step 4: Simplify right side
    21,198.08x = 358,211,475.15
  5. Step 5: Solve for x
    x = 358,211,475.15/21,198.08
  6. Step 6: Final answer
    x = 16,898.30

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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.