Home / 27,676.13-38,192.85-15,739.45

Finding the Fourth Proportional to 27,676.13, 38,192.85 and 15,739.45

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Solution

The fourth proportional to 27,676.13, 38,192.85 and 15,739.45 is: 21,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,676.13 : 38,192.85 = 15,739.45 : x
  2. Step 2: Convert to fraction form
    27,676.13/38,192.85 = 15,739.45/x
  3. Step 3: Cross multiply
    27,676.13x = 38,192.85 × 15,739.45
  4. Step 4: Simplify right side
    27,676.13x = 601,134,357.45
  5. Step 5: Solve for x
    x = 601,134,357.45/27,676.13
  6. Step 6: Final answer
    x = 21,720.32

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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.