Home / 28,217.70-42,340.32-19,950.84

Finding the Fourth Proportional to 28,217.70, 42,340.32 and 19,950.84

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Solution

The fourth proportional to 28,217.70, 42,340.32 and 19,950.84 is: 29,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.70 : 42,340.32 = 19,950.84 : x
  2. Step 2: Convert to fraction form
    28,217.70/42,340.32 = 19,950.84/x
  3. Step 3: Cross multiply
    28,217.70x = 42,340.32 × 19,950.84
  4. Step 4: Simplify right side
    28,217.70x = 844,724,949.87
  5. Step 5: Solve for x
    x = 844,724,949.87/28,217.70
  6. Step 6: Final answer
    x = 29,936.00

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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.