Home / 21,758.84-30,026.95-12,198.68

Finding the Fourth Proportional to 21,758.84, 30,026.95 and 12,198.68

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Solution

The fourth proportional to 21,758.84, 30,026.95 and 12,198.68 is: 16,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,758.84 : 30,026.95 = 12,198.68 : x
  2. Step 2: Convert to fraction form
    21,758.84/30,026.95 = 12,198.68/x
  3. Step 3: Cross multiply
    21,758.84x = 30,026.95 × 12,198.68
  4. Step 4: Simplify right side
    21,758.84x = 366,289,199.00
  5. Step 5: Solve for x
    x = 366,289,199.00/21,758.84
  6. Step 6: Final answer
    x = 16,834.04

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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.