Home / 23,176.81-34,778-12,646.41

Finding the Fourth Proportional to 23,176.81, 34,778 and 12,646.41

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Solution

The fourth proportional to 23,176.81, 34,778 and 12,646.41 is: 18,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,176.81 : 34,778 = 12,646.41 : x
  2. Step 2: Convert to fraction form
    23,176.81/34,778 = 12,646.41/x
  3. Step 3: Cross multiply
    23,176.81x = 34,778 × 12,646.41
  4. Step 4: Simplify right side
    23,176.81x = 439,816,846.98
  5. Step 5: Solve for x
    x = 439,816,846.98/23,176.81
  6. Step 6: Final answer
    x = 18,976.59

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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.