Home / 28,956.84-43,435.68-11,426.50

Finding the Fourth Proportional to 28,956.84, 43,435.68 and 11,426.50

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Solution

The fourth proportional to 28,956.84, 43,435.68 and 11,426.50 is: 17,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.84 : 43,435.68 = 11,426.50 : x
  2. Step 2: Convert to fraction form
    28,956.84/43,435.68 = 11,426.50/x
  3. Step 3: Cross multiply
    28,956.84x = 43,435.68 × 11,426.50
  4. Step 4: Simplify right side
    28,956.84x = 496,317,797.52
  5. Step 5: Solve for x
    x = 496,317,797.52/28,956.84
  6. Step 6: Final answer
    x = 17,139.92

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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.