Home / 28,219.14-38,942.84-15,473.49

Finding the Fourth Proportional to 28,219.14, 38,942.84 and 15,473.49

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Solution

The fourth proportional to 28,219.14, 38,942.84 and 15,473.49 is: 21,353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.14 : 38,942.84 = 15,473.49 : x
  2. Step 2: Convert to fraction form
    28,219.14/38,942.84 = 15,473.49/x
  3. Step 3: Cross multiply
    28,219.14x = 38,942.84 × 15,473.49
  4. Step 4: Simplify right side
    28,219.14x = 602,581,684.00
  5. Step 5: Solve for x
    x = 602,581,684.00/28,219.14
  6. Step 6: Final answer
    x = 21,353.65

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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.