Home / 28,638.94-39,508.79-18,569.93

Finding the Fourth Proportional to 28,638.94, 39,508.79 and 18,569.93

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Solution

The fourth proportional to 28,638.94, 39,508.79 and 18,569.93 is: 25,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,638.94 : 39,508.79 = 18,569.93 : x
  2. Step 2: Convert to fraction form
    28,638.94/39,508.79 = 18,569.93/x
  3. Step 3: Cross multiply
    28,638.94x = 39,508.79 × 18,569.93
  4. Step 4: Simplify right side
    28,638.94x = 733,675,464.68
  5. Step 5: Solve for x
    x = 733,675,464.68/28,638.94
  6. Step 6: Final answer
    x = 25,618.11

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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.