Home / 28,876.14-39,848.94-16,939.80

Finding the Fourth Proportional to 28,876.14, 39,848.94 and 16,939.80

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Solution

The fourth proportional to 28,876.14, 39,848.94 and 16,939.80 is: 23,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.14 : 39,848.94 = 16,939.80 : x
  2. Step 2: Convert to fraction form
    28,876.14/39,848.94 = 16,939.80/x
  3. Step 3: Cross multiply
    28,876.14x = 39,848.94 × 16,939.80
  4. Step 4: Simplify right side
    28,876.14x = 675,033,073.81
  5. Step 5: Solve for x
    x = 675,033,073.81/28,876.14
  6. Step 6: Final answer
    x = 23,376.85

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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.