Home / 28,878.84-43,323.99-12,238.74

Finding the Fourth Proportional to 28,878.84, 43,323.99 and 12,238.74

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Solution

The fourth proportional to 28,878.84, 43,323.99 and 12,238.74 is: 18,360.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.84 : 43,323.99 = 12,238.74 : x
  2. Step 2: Convert to fraction form
    28,878.84/43,323.99 = 12,238.74/x
  3. Step 3: Cross multiply
    28,878.84x = 43,323.99 × 12,238.74
  4. Step 4: Simplify right side
    28,878.84x = 530,231,049.37
  5. Step 5: Solve for x
    x = 530,231,049.37/28,878.84
  6. Step 6: Final answer
    x = 18,360.54

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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.