Home / 21,595.42-29,800.53-12,163.38

Finding the Fourth Proportional to 21,595.42, 29,800.53 and 12,163.38

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Solution

The fourth proportional to 21,595.42, 29,800.53 and 12,163.38 is: 16,784.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.42 : 29,800.53 = 12,163.38 : x
  2. Step 2: Convert to fraction form
    21,595.42/29,800.53 = 12,163.38/x
  3. Step 3: Cross multiply
    21,595.42x = 29,800.53 × 12,163.38
  4. Step 4: Simplify right side
    21,595.42x = 362,475,170.59
  5. Step 5: Solve for x
    x = 362,475,170.59/21,595.42
  6. Step 6: Final answer
    x = 16,784.82

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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.