Home / 21,628.08-29,846.16-12,197.52

Finding the Fourth Proportional to 21,628.08, 29,846.16 and 12,197.52

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Solution

The fourth proportional to 21,628.08, 29,846.16 and 12,197.52 is: 16,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.08 : 29,846.16 = 12,197.52 : x
  2. Step 2: Convert to fraction form
    21,628.08/29,846.16 = 12,197.52/x
  3. Step 3: Cross multiply
    21,628.08x = 29,846.16 × 12,197.52
  4. Step 4: Simplify right side
    21,628.08x = 364,049,133.52
  5. Step 5: Solve for x
    x = 364,049,133.52/21,628.08
  6. Step 6: Final answer
    x = 16,832.24

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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.