Home / 28,776.65-43,170.84-12,136.68

Finding the Fourth Proportional to 28,776.65, 43,170.84 and 12,136.68

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Solution

The fourth proportional to 28,776.65, 43,170.84 and 12,136.68 is: 18,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.65 : 43,170.84 = 12,136.68 : x
  2. Step 2: Convert to fraction form
    28,776.65/43,170.84 = 12,136.68/x
  3. Step 3: Cross multiply
    28,776.65x = 43,170.84 × 12,136.68
  4. Step 4: Simplify right side
    28,776.65x = 523,950,670.41
  5. Step 5: Solve for x
    x = 523,950,670.41/28,776.65
  6. Step 6: Final answer
    x = 18,207.50

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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.