Home / 21,319.04-31,992.84-7,468.04

Finding the Fourth Proportional to 21,319.04, 31,992.84 and 7,468.04

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Solution

The fourth proportional to 21,319.04, 31,992.84 and 7,468.04 is: 11,207.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319.04 : 31,992.84 = 7,468.04 : x
  2. Step 2: Convert to fraction form
    21,319.04/31,992.84 = 7,468.04/x
  3. Step 3: Cross multiply
    21,319.04x = 31,992.84 × 7,468.04
  4. Step 4: Simplify right side
    21,319.04x = 238,923,888.82
  5. Step 5: Solve for x
    x = 238,923,888.82/21,319.04
  6. Step 6: Final answer
    x = 11,207.06

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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.