Home / 30,340.17-41,870.39-16,911.09

Finding the Fourth Proportional to 30,340.17, 41,870.39 and 16,911.09

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Solution

The fourth proportional to 30,340.17, 41,870.39 and 16,911.09 is: 23,337.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340.17 : 41,870.39 = 16,911.09 : x
  2. Step 2: Convert to fraction form
    30,340.17/41,870.39 = 16,911.09/x
  3. Step 3: Cross multiply
    30,340.17x = 41,870.39 × 16,911.09
  4. Step 4: Simplify right side
    30,340.17x = 708,073,849.07
  5. Step 5: Solve for x
    x = 708,073,849.07/30,340.17
  6. Step 6: Final answer
    x = 23,337.83

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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.