Home / 30,240.81-41,732.28-16,811.64

Finding the Fourth Proportional to 30,240.81, 41,732.28 and 16,811.64

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Solution

The fourth proportional to 30,240.81, 41,732.28 and 16,811.64 is: 23,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240.81 : 41,732.28 = 16,811.64 : x
  2. Step 2: Convert to fraction form
    30,240.81/41,732.28 = 16,811.64/x
  3. Step 3: Cross multiply
    30,240.81x = 41,732.28 × 16,811.64
  4. Step 4: Simplify right side
    30,240.81x = 701,588,067.74
  5. Step 5: Solve for x
    x = 701,588,067.74/30,240.81
  6. Step 6: Final answer
    x = 23,200.04

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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.