Home / 28,063.20-38,727.46-15,316.50

Finding the Fourth Proportional to 28,063.20, 38,727.46 and 15,316.50

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Solution

The fourth proportional to 28,063.20, 38,727.46 and 15,316.50 is: 21,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063.20 : 38,727.46 = 15,316.50 : x
  2. Step 2: Convert to fraction form
    28,063.20/38,727.46 = 15,316.50/x
  3. Step 3: Cross multiply
    28,063.20x = 38,727.46 × 15,316.50
  4. Step 4: Simplify right side
    28,063.20x = 593,169,141.09
  5. Step 5: Solve for x
    x = 593,169,141.09/28,063.20
  6. Step 6: Final answer
    x = 21,136.90

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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.