Home / 21,301.93-31,967.12-7,450.93

Finding the Fourth Proportional to 21,301.93, 31,967.12 and 7,450.93

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Solution

The fourth proportional to 21,301.93, 31,967.12 and 7,450.93 is: 11,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.93 : 31,967.12 = 7,450.93 : x
  2. Step 2: Convert to fraction form
    21,301.93/31,967.12 = 7,450.93/x
  3. Step 3: Cross multiply
    21,301.93x = 31,967.12 × 7,450.93
  4. Step 4: Simplify right side
    21,301.93x = 238,184,736.17
  5. Step 5: Solve for x
    x = 238,184,736.17/21,301.93
  6. Step 6: Final answer
    x = 11,181.37

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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.