Home / 28,956.14-43,352.31-18,399.99

Finding the Fourth Proportional to 28,956.14, 43,352.31 and 18,399.99

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Solution

The fourth proportional to 28,956.14, 43,352.31 and 18,399.99 is: 27,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.14 : 43,352.31 = 18,399.99 : x
  2. Step 2: Convert to fraction form
    28,956.14/43,352.31 = 18,399.99/x
  3. Step 3: Cross multiply
    28,956.14x = 43,352.31 × 18,399.99
  4. Step 4: Simplify right side
    28,956.14x = 797,682,070.48
  5. Step 5: Solve for x
    x = 797,682,070.48/28,956.14
  6. Step 6: Final answer
    x = 27,547.94

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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.