Home / 21,171.88-31,763.97-9,482.35

Finding the Fourth Proportional to 21,171.88, 31,763.97 and 9,482.35

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Solution

The fourth proportional to 21,171.88, 31,763.97 and 9,482.35 is: 14,226.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171.88 : 31,763.97 = 9,482.35 : x
  2. Step 2: Convert to fraction form
    21,171.88/31,763.97 = 9,482.35/x
  3. Step 3: Cross multiply
    21,171.88x = 31,763.97 × 9,482.35
  4. Step 4: Simplify right side
    21,171.88x = 301,197,080.93
  5. Step 5: Solve for x
    x = 301,197,080.93/21,171.88
  6. Step 6: Final answer
    x = 14,226.28

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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.