Home / 28,812.12-39,745.91-19,248.95

Finding the Fourth Proportional to 28,812.12, 39,745.91 and 19,248.95

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Solution

The fourth proportional to 28,812.12, 39,745.91 and 19,248.95 is: 26,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.12 : 39,745.91 = 19,248.95 : x
  2. Step 2: Convert to fraction form
    28,812.12/39,745.91 = 19,248.95/x
  3. Step 3: Cross multiply
    28,812.12x = 39,745.91 × 19,248.95
  4. Step 4: Simplify right side
    28,812.12x = 765,067,073.51
  5. Step 5: Solve for x
    x = 765,067,073.51/28,812.12
  6. Step 6: Final answer
    x = 26,553.65

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1.5x scale

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.