Home / 28,676.24-43,009.50-11,146.40

Finding the Fourth Proportional to 28,676.24, 43,009.50 and 11,146.40

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Solution

The fourth proportional to 28,676.24, 43,009.50 and 11,146.40 is: 16,717.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.24 : 43,009.50 = 11,146.40 : x
  2. Step 2: Convert to fraction form
    28,676.24/43,009.50 = 11,146.40/x
  3. Step 3: Cross multiply
    28,676.24x = 43,009.50 × 11,146.40
  4. Step 4: Simplify right side
    28,676.24x = 479,401,090.80
  5. Step 5: Solve for x
    x = 479,401,090.80/28,676.24
  6. Step 6: Final answer
    x = 16,717.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.