Home / 28,606.65-39,479.51-15,863.83

Finding the Fourth Proportional to 28,606.65, 39,479.51 and 15,863.83

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Solution

The fourth proportional to 28,606.65, 39,479.51 and 15,863.83 is: 21,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.65 : 39,479.51 = 15,863.83 : x
  2. Step 2: Convert to fraction form
    28,606.65/39,479.51 = 15,863.83/x
  3. Step 3: Cross multiply
    28,606.65x = 39,479.51 × 15,863.83
  4. Step 4: Simplify right side
    28,606.65x = 626,296,057.11
  5. Step 5: Solve for x
    x = 626,296,057.11/28,606.65
  6. Step 6: Final answer
    x = 21,893.37

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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.