Home / 28,821.51-39,776.31-17,493.91

Finding the Fourth Proportional to 28,821.51, 39,776.31 and 17,493.91

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Solution

The fourth proportional to 28,821.51, 39,776.31 and 17,493.91 is: 24,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.51 : 39,776.31 = 17,493.91 : x
  2. Step 2: Convert to fraction form
    28,821.51/39,776.31 = 17,493.91/x
  3. Step 3: Cross multiply
    28,821.51x = 39,776.31 × 17,493.91
  4. Step 4: Simplify right side
    28,821.51x = 695,843,087.83
  5. Step 5: Solve for x
    x = 695,843,087.83/28,821.51
  6. Step 6: Final answer
    x = 24,143.19

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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.