Home / 21,044-31,566.24-5,460.68

Finding the Fourth Proportional to 21,044, 31,566.24 and 5,460.68

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Solution

The fourth proportional to 21,044, 31,566.24 and 5,460.68 is: 8,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044 : 31,566.24 = 5,460.68 : x
  2. Step 2: Convert to fraction form
    21,044/31,566.24 = 5,460.68/x
  3. Step 3: Cross multiply
    21,044x = 31,566.24 × 5,460.68
  4. Step 4: Simplify right side
    21,044x = 172,373,135.44
  5. Step 5: Solve for x
    x = 172,373,135.44/21,044
  6. Step 6: Final answer
    x = 8,191.08

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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.