Home / 28,083.24-38,752.92-15,507

Finding the Fourth Proportional to 28,083.24, 38,752.92 and 15,507

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Solution

The fourth proportional to 28,083.24, 38,752.92 and 15,507 is: 21,398.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.24 : 38,752.92 = 15,507 : x
  2. Step 2: Convert to fraction form
    28,083.24/38,752.92 = 15,507/x
  3. Step 3: Cross multiply
    28,083.24x = 38,752.92 × 15,507
  4. Step 4: Simplify right side
    28,083.24x = 600,941,530.44
  5. Step 5: Solve for x
    x = 600,941,530.44/28,083.24
  6. Step 6: Final answer
    x = 21,398.58

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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.