Home / 28,246.26-38,979.72-15,671.01

Finding the Fourth Proportional to 28,246.26, 38,979.72 and 15,671.01

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Solution

The fourth proportional to 28,246.26, 38,979.72 and 15,671.01 is: 21,625.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.26 : 38,979.72 = 15,671.01 : x
  2. Step 2: Convert to fraction form
    28,246.26/38,979.72 = 15,671.01/x
  3. Step 3: Cross multiply
    28,246.26x = 38,979.72 × 15,671.01
  4. Step 4: Simplify right side
    28,246.26x = 610,851,581.92
  5. Step 5: Solve for x
    x = 610,851,581.92/28,246.26
  6. Step 6: Final answer
    x = 21,625.93

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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.