Home / 21,176.83-31,788.23-15,926.82

Finding the Fourth Proportional to 21,176.83, 31,788.23 and 15,926.82

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Solution

The fourth proportional to 21,176.83, 31,788.23 and 15,926.82 is: 23,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.83 : 31,788.23 = 15,926.82 : x
  2. Step 2: Convert to fraction form
    21,176.83/31,788.23 = 15,926.82/x
  3. Step 3: Cross multiply
    21,176.83x = 31,788.23 × 15,926.82
  4. Step 4: Simplify right side
    21,176.83x = 506,285,417.33
  5. Step 5: Solve for x
    x = 506,285,417.33/21,176.83
  6. Step 6: Final answer
    x = 23,907.52

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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.