Home / 28,186.08-38,896.83-15,610.92

Finding the Fourth Proportional to 28,186.08, 38,896.83 and 15,610.92

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Solution

The fourth proportional to 28,186.08, 38,896.83 and 15,610.92 is: 21,543.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.08 : 38,896.83 = 15,610.92 : x
  2. Step 2: Convert to fraction form
    28,186.08/38,896.83 = 15,610.92/x
  3. Step 3: Cross multiply
    28,186.08x = 38,896.83 × 15,610.92
  4. Step 4: Simplify right side
    28,186.08x = 607,215,301.38
  5. Step 5: Solve for x
    x = 607,215,301.38/28,186.08
  6. Step 6: Final answer
    x = 21,543.09

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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.