Home / 20,236.86-27,939.87-13,070.00

Finding the Fourth Proportional to 20,236.86, 27,939.87 and 13,070.00

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Solution

The fourth proportional to 20,236.86, 27,939.87 and 13,070.00 is: 18,045.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.86 : 27,939.87 = 13,070.00 : x
  2. Step 2: Convert to fraction form
    20,236.86/27,939.87 = 13,070.00/x
  3. Step 3: Cross multiply
    20,236.86x = 27,939.87 × 13,070.00
  4. Step 4: Simplify right side
    20,236.86x = 365,174,170.75
  5. Step 5: Solve for x
    x = 365,174,170.75/20,236.86
  6. Step 6: Final answer
    x = 18,045.00

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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.