Home / 28,479.96-39,320.82-25,490.61

Finding the Fourth Proportional to 28,479.96, 39,320.82 and 25,490.61

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Solution

The fourth proportional to 28,479.96, 39,320.82 and 25,490.61 is: 35,193.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.96 : 39,320.82 = 25,490.61 : x
  2. Step 2: Convert to fraction form
    28,479.96/39,320.82 = 25,490.61/x
  3. Step 3: Cross multiply
    28,479.96x = 39,320.82 × 25,490.61
  4. Step 4: Simplify right side
    28,479.96x = 1,002,311,687.50
  5. Step 5: Solve for x
    x = 1,002,311,687.50/28,479.96
  6. Step 6: Final answer
    x = 35,193.58

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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.