Home / 15,979.26-23,969.52-4,292.40

Finding the Fourth Proportional to 15,979.26, 23,969.52 and 4,292.40

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Solution

The fourth proportional to 15,979.26, 23,969.52 and 4,292.40 is: 6,438.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.26 : 23,969.52 = 4,292.40 : x
  2. Step 2: Convert to fraction form
    15,979.26/23,969.52 = 4,292.40/x
  3. Step 3: Cross multiply
    15,979.26x = 23,969.52 × 4,292.40
  4. Step 4: Simplify right side
    15,979.26x = 102,886,767.65
  5. Step 5: Solve for x
    x = 102,886,767.65/15,979.26
  6. Step 6: Final answer
    x = 6,438.77

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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.