Home / 17,820.32-26,730.36-13,928

Finding the Fourth Proportional to 17,820.32, 26,730.36 and 13,928

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Solution

The fourth proportional to 17,820.32, 26,730.36 and 13,928 is: 20,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820.32 : 26,730.36 = 13,928 : x
  2. Step 2: Convert to fraction form
    17,820.32/26,730.36 = 13,928/x
  3. Step 3: Cross multiply
    17,820.32x = 26,730.36 × 13,928
  4. Step 4: Simplify right side
    17,820.32x = 372,300,454.08
  5. Step 5: Solve for x
    x = 372,300,454.08/17,820.32
  6. Step 6: Final answer
    x = 20,891.91

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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.