Home / 28,051.40-38,706.89-16,112.43

Finding the Fourth Proportional to 28,051.40, 38,706.89 and 16,112.43

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Solution

The fourth proportional to 28,051.40, 38,706.89 and 16,112.43 is: 22,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.40 : 38,706.89 = 16,112.43 : x
  2. Step 2: Convert to fraction form
    28,051.40/38,706.89 = 16,112.43/x
  3. Step 3: Cross multiply
    28,051.40x = 38,706.89 × 16,112.43
  4. Step 4: Simplify right side
    28,051.40x = 623,661,975.08
  5. Step 5: Solve for x
    x = 623,661,975.08/28,051.40
  6. Step 6: Final answer
    x = 22,232.83

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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.