Home / 28,708.29-43,020.99-19,814.49

Finding the Fourth Proportional to 28,708.29, 43,020.99 and 19,814.49

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Solution

The fourth proportional to 28,708.29, 43,020.99 and 19,814.49 is: 29,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.29 : 43,020.99 = 19,814.49 : x
  2. Step 2: Convert to fraction form
    28,708.29/43,020.99 = 19,814.49/x
  3. Step 3: Cross multiply
    28,708.29x = 43,020.99 × 19,814.49
  4. Step 4: Simplify right side
    28,708.29x = 852,438,976.15
  5. Step 5: Solve for x
    x = 852,438,976.15/28,708.29
  6. Step 6: Final answer
    x = 29,693.13

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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.