Home / 28,910.66-43,332.96-13,127.72

Finding the Fourth Proportional to 28,910.66, 43,332.96 and 13,127.72

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Solution

The fourth proportional to 28,910.66, 43,332.96 and 13,127.72 is: 19,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,910.66 : 43,332.96 = 13,127.72 : x
  2. Step 2: Convert to fraction form
    28,910.66/43,332.96 = 13,127.72/x
  3. Step 3: Cross multiply
    28,910.66x = 43,332.96 × 13,127.72
  4. Step 4: Simplify right side
    28,910.66x = 568,862,965.65
  5. Step 5: Solve for x
    x = 568,862,965.65/28,910.66
  6. Step 6: Final answer
    x = 19,676.58

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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.