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Finding the Fourth Proportional to 32,392.88, 48,479.58 and 19,920.80

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Solution

The fourth proportional to 32,392.88, 48,479.58 and 19,920.80 is: 29,813.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,392.88 : 48,479.58 = 19,920.80 : x
  2. Step 2: Convert to fraction form
    32,392.88/48,479.58 = 19,920.80/x
  3. Step 3: Cross multiply
    32,392.88x = 48,479.58 × 19,920.80
  4. Step 4: Simplify right side
    32,392.88x = 965,752,017.26
  5. Step 5: Solve for x
    x = 965,752,017.26/32,392.88
  6. Step 6: Final answer
    x = 29,813.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.