Home / 28,979.64-43,438.10-14,198.52

Finding the Fourth Proportional to 28,979.64, 43,438.10 and 14,198.52

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Solution

The fourth proportional to 28,979.64, 43,438.10 and 14,198.52 is: 21,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.64 : 43,438.10 = 14,198.52 : x
  2. Step 2: Convert to fraction form
    28,979.64/43,438.10 = 14,198.52/x
  3. Step 3: Cross multiply
    28,979.64x = 43,438.10 × 14,198.52
  4. Step 4: Simplify right side
    28,979.64x = 616,756,731.61
  5. Step 5: Solve for x
    x = 616,756,731.61/28,979.64
  6. Step 6: Final answer
    x = 21,282.42

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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.