Home / 28,186.08-38,896.70-15,610.83

Finding the Fourth Proportional to 28,186.08, 38,896.70 and 15,610.83

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Solution

The fourth proportional to 28,186.08, 38,896.70 and 15,610.83 is: 21,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,186.08 : 38,896.70 = 15,610.83 : x
  2. Step 2: Convert to fraction form
    28,186.08/38,896.70 = 15,610.83/x
  3. Step 3: Cross multiply
    28,186.08x = 38,896.70 × 15,610.83
  4. Step 4: Simplify right side
    28,186.08x = 607,209,771.26
  5. Step 5: Solve for x
    x = 607,209,771.26/28,186.08
  6. Step 6: Final answer
    x = 21,542.90

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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.