Home / 28,870.88-43,251.04-17,148.48

Finding the Fourth Proportional to 28,870.88, 43,251.04 and 17,148.48

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Solution

The fourth proportional to 28,870.88, 43,251.04 and 17,148.48 is: 25,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.88 : 43,251.04 = 17,148.48 : x
  2. Step 2: Convert to fraction form
    28,870.88/43,251.04 = 17,148.48/x
  3. Step 3: Cross multiply
    28,870.88x = 43,251.04 × 17,148.48
  4. Step 4: Simplify right side
    28,870.88x = 741,689,594.42
  5. Step 5: Solve for x
    x = 741,689,594.42/28,870.88
  6. Step 6: Final answer
    x = 25,689.89

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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.