Home / 28,813.12-39,747.29-19,249.95

Finding the Fourth Proportional to 28,813.12, 39,747.29 and 19,249.95

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Solution

The fourth proportional to 28,813.12, 39,747.29 and 19,249.95 is: 26,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.12 : 39,747.29 = 19,249.95 : x
  2. Step 2: Convert to fraction form
    28,813.12/39,747.29 = 19,249.95/x
  3. Step 3: Cross multiply
    28,813.12x = 39,747.29 × 19,249.95
  4. Step 4: Simplify right side
    28,813.12x = 765,133,345.14
  5. Step 5: Solve for x
    x = 765,133,345.14/28,813.12
  6. Step 6: Final answer
    x = 26,555.03

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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.