Home / 21,606.24-29,818.08-12,177.12

Finding the Fourth Proportional to 21,606.24, 29,818.08 and 12,177.12

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Solution

The fourth proportional to 21,606.24, 29,818.08 and 12,177.12 is: 16,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.24 : 29,818.08 = 12,177.12 : x
  2. Step 2: Convert to fraction form
    21,606.24/29,818.08 = 12,177.12/x
  3. Step 3: Cross multiply
    21,606.24x = 29,818.08 × 12,177.12
  4. Step 4: Simplify right side
    21,606.24x = 363,098,338.33
  5. Step 5: Solve for x
    x = 363,098,338.33/21,606.24
  6. Step 6: Final answer
    x = 16,805.25

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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.