Home / 28,718.59-43,078.11-10,011.99

Finding the Fourth Proportional to 28,718.59, 43,078.11 and 10,011.99

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Solution

The fourth proportional to 28,718.59, 43,078.11 and 10,011.99 is: 15,018.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.59 : 43,078.11 = 10,011.99 : x
  2. Step 2: Convert to fraction form
    28,718.59/43,078.11 = 10,011.99/x
  3. Step 3: Cross multiply
    28,718.59x = 43,078.11 × 10,011.99
  4. Step 4: Simplify right side
    28,718.59x = 431,297,606.54
  5. Step 5: Solve for x
    x = 431,297,606.54/28,718.59
  6. Step 6: Final answer
    x = 15,018.06

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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.