Home / 15,979.98-23,969.96-4,293.20

Finding the Fourth Proportional to 15,979.98, 23,969.96 and 4,293.20

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Solution

The fourth proportional to 15,979.98, 23,969.96 and 4,293.20 is: 6,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.98 : 23,969.96 = 4,293.20 : x
  2. Step 2: Convert to fraction form
    15,979.98/23,969.96 = 4,293.20/x
  3. Step 3: Cross multiply
    15,979.98x = 23,969.96 × 4,293.20
  4. Step 4: Simplify right side
    15,979.98x = 102,907,780.84
  5. Step 5: Solve for x
    x = 102,907,780.84/15,979.98
  6. Step 6: Final answer
    x = 6,439.79

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1.5x scale

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.