Home / 28,695.47-43,045.68-7,918.97

Finding the Fourth Proportional to 28,695.47, 43,045.68 and 7,918.97

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Solution

The fourth proportional to 28,695.47, 43,045.68 and 7,918.97 is: 11,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.47 : 43,045.68 = 7,918.97 : x
  2. Step 2: Convert to fraction form
    28,695.47/43,045.68 = 7,918.97/x
  3. Step 3: Cross multiply
    28,695.47x = 43,045.68 × 7,918.97
  4. Step 4: Simplify right side
    28,695.47x = 340,877,233.32
  5. Step 5: Solve for x
    x = 340,877,233.32/28,695.47
  6. Step 6: Final answer
    x = 11,879.13

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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.