Home / 18,707.14-28,060.39-10,821.52

Finding the Fourth Proportional to 18,707.14, 28,060.39 and 10,821.52

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Solution

The fourth proportional to 18,707.14, 28,060.39 and 10,821.52 is: 16,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.14 : 28,060.39 = 10,821.52 : x
  2. Step 2: Convert to fraction form
    18,707.14/28,060.39 = 10,821.52/x
  3. Step 3: Cross multiply
    18,707.14x = 28,060.39 × 10,821.52
  4. Step 4: Simplify right side
    18,707.14x = 303,656,071.59
  5. Step 5: Solve for x
    x = 303,656,071.59/18,707.14
  6. Step 6: Final answer
    x = 16,232.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.