Home / 30,306.42-41,815.89-18,367.29

Finding the Fourth Proportional to 30,306.42, 41,815.89 and 18,367.29

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Solution

The fourth proportional to 30,306.42, 41,815.89 and 18,367.29 is: 25,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.42 : 41,815.89 = 18,367.29 : x
  2. Step 2: Convert to fraction form
    30,306.42/41,815.89 = 18,367.29/x
  3. Step 3: Cross multiply
    30,306.42x = 41,815.89 × 18,367.29
  4. Step 4: Simplify right side
    30,306.42x = 768,044,578.24
  5. Step 5: Solve for x
    x = 768,044,578.24/30,306.42
  6. Step 6: Final answer
    x = 25,342.64

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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.