Home / 30,384.15-41,919.04-18,898.30

Finding the Fourth Proportional to 30,384.15, 41,919.04 and 18,898.30

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Solution

The fourth proportional to 30,384.15, 41,919.04 and 18,898.30 is: 26,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.15 : 41,919.04 = 18,898.30 : x
  2. Step 2: Convert to fraction form
    30,384.15/41,919.04 = 18,898.30/x
  3. Step 3: Cross multiply
    30,384.15x = 41,919.04 × 18,898.30
  4. Step 4: Simplify right side
    30,384.15x = 792,198,593.63
  5. Step 5: Solve for x
    x = 792,198,593.63/30,384.15
  6. Step 6: Final answer
    x = 26,072.76

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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.