Home / 21,193.48-31,788.81-8,710.27

Finding the Fourth Proportional to 21,193.48, 31,788.81 and 8,710.27

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Solution

The fourth proportional to 21,193.48, 31,788.81 and 8,710.27 is: 13,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.48 : 31,788.81 = 8,710.27 : x
  2. Step 2: Convert to fraction form
    21,193.48/31,788.81 = 8,710.27/x
  3. Step 3: Cross multiply
    21,193.48x = 31,788.81 × 8,710.27
  4. Step 4: Simplify right side
    21,193.48x = 276,889,118.08
  5. Step 5: Solve for x
    x = 276,889,118.08/21,193.48
  6. Step 6: Final answer
    x = 13,064.83

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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.