Home / 28,246-38,979.46-15,499.26

Finding the Fourth Proportional to 28,246, 38,979.46 and 15,499.26

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Solution

The fourth proportional to 28,246, 38,979.46 and 15,499.26 is: 21,388.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246 : 38,979.46 = 15,499.26 : x
  2. Step 2: Convert to fraction form
    28,246/38,979.46 = 15,499.26/x
  3. Step 3: Cross multiply
    28,246x = 38,979.46 × 15,499.26
  4. Step 4: Simplify right side
    28,246x = 604,152,785.20
  5. Step 5: Solve for x
    x = 604,152,785.20/28,246
  6. Step 6: Final answer
    x = 21,388.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.