Home / 30,612.85-45,905.41-10,891.92

Finding the Fourth Proportional to 30,612.85, 45,905.41 and 10,891.92

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Solution

The fourth proportional to 30,612.85, 45,905.41 and 10,891.92 is: 16,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612.85 : 45,905.41 = 10,891.92 : x
  2. Step 2: Convert to fraction form
    30,612.85/45,905.41 = 10,891.92/x
  3. Step 3: Cross multiply
    30,612.85x = 45,905.41 × 10,891.92
  4. Step 4: Simplify right side
    30,612.85x = 499,998,026.06
  5. Step 5: Solve for x
    x = 499,998,026.06/30,612.85
  6. Step 6: Final answer
    x = 16,332.95

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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.