Home / 21,629.34-29,849.50-12,197.70

Finding the Fourth Proportional to 21,629.34, 29,849.50 and 12,197.70

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Solution

The fourth proportional to 21,629.34, 29,849.50 and 12,197.70 is: 16,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.34 : 29,849.50 = 12,197.70 : x
  2. Step 2: Convert to fraction form
    21,629.34/29,849.50 = 12,197.70/x
  3. Step 3: Cross multiply
    21,629.34x = 29,849.50 × 12,197.70
  4. Step 4: Simplify right side
    21,629.34x = 364,095,246.15
  5. Step 5: Solve for x
    x = 364,095,246.15/21,629.34
  6. Step 6: Final answer
    x = 16,833.40

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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.