Home / 15,319.08-22,979.28-4,789.30

Finding the Fourth Proportional to 15,319.08, 22,979.28 and 4,789.30

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Solution

The fourth proportional to 15,319.08, 22,979.28 and 4,789.30 is: 7,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.08 : 22,979.28 = 4,789.30 : x
  2. Step 2: Convert to fraction form
    15,319.08/22,979.28 = 4,789.30/x
  3. Step 3: Cross multiply
    15,319.08x = 22,979.28 × 4,789.30
  4. Step 4: Simplify right side
    15,319.08x = 110,054,696.89
  5. Step 5: Solve for x
    x = 110,054,696.89/15,319.08
  6. Step 6: Final answer
    x = 7,184.16

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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.