Home / 20,676.66-28,521.99-12,713.24

Finding the Fourth Proportional to 20,676.66, 28,521.99 and 12,713.24

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Solution

The fourth proportional to 20,676.66, 28,521.99 and 12,713.24 is: 17,537.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.66 : 28,521.99 = 12,713.24 : x
  2. Step 2: Convert to fraction form
    20,676.66/28,521.99 = 12,713.24/x
  3. Step 3: Cross multiply
    20,676.66x = 28,521.99 × 12,713.24
  4. Step 4: Simplify right side
    20,676.66x = 362,606,904.15
  5. Step 5: Solve for x
    x = 362,606,904.15/20,676.66
  6. Step 6: Final answer
    x = 17,537.02

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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.