Home / 28,676.10-39,579.35-15,933.66

Finding the Fourth Proportional to 28,676.10, 39,579.35 and 15,933.66

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Solution

The fourth proportional to 28,676.10, 39,579.35 and 15,933.66 is: 21,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.10 : 39,579.35 = 15,933.66 : x
  2. Step 2: Convert to fraction form
    28,676.10/39,579.35 = 15,933.66/x
  3. Step 3: Cross multiply
    28,676.10x = 39,579.35 × 15,933.66
  4. Step 4: Simplify right side
    28,676.10x = 630,643,900.46
  5. Step 5: Solve for x
    x = 630,643,900.46/28,676.10
  6. Step 6: Final answer
    x = 21,991.97

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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.