Home / 30,811.41-42,519.99-18,064.92

Finding the Fourth Proportional to 30,811.41, 42,519.99 and 18,064.92

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Solution

The fourth proportional to 30,811.41, 42,519.99 and 18,064.92 is: 24,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.41 : 42,519.99 = 18,064.92 : x
  2. Step 2: Convert to fraction form
    30,811.41/42,519.99 = 18,064.92/x
  3. Step 3: Cross multiply
    30,811.41x = 42,519.99 × 18,064.92
  4. Step 4: Simplify right side
    30,811.41x = 768,120,343.33
  5. Step 5: Solve for x
    x = 768,120,343.33/30,811.41
  6. Step 6: Final answer
    x = 24,929.73

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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.