Home / 28,679.94-39,578.76-17,349.66

Finding the Fourth Proportional to 28,679.94, 39,578.76 and 17,349.66

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Solution

The fourth proportional to 28,679.94, 39,578.76 and 17,349.66 is: 23,942.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679.94 : 39,578.76 = 17,349.66 : x
  2. Step 2: Convert to fraction form
    28,679.94/39,578.76 = 17,349.66/x
  3. Step 3: Cross multiply
    28,679.94x = 39,578.76 × 17,349.66
  4. Step 4: Simplify right side
    28,679.94x = 686,678,029.22
  5. Step 5: Solve for x
    x = 686,678,029.22/28,679.94
  6. Step 6: Final answer
    x = 23,942.80

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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.