Home / 21,095.21-31,627.19-12,773.27

Finding the Fourth Proportional to 21,095.21, 31,627.19 and 12,773.27

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Solution

The fourth proportional to 21,095.21, 31,627.19 and 12,773.27 is: 19,150.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.21 : 31,627.19 = 12,773.27 : x
  2. Step 2: Convert to fraction form
    21,095.21/31,627.19 = 12,773.27/x
  3. Step 3: Cross multiply
    21,095.21x = 31,627.19 × 12,773.27
  4. Step 4: Simplify right side
    21,095.21x = 403,982,415.21
  5. Step 5: Solve for x
    x = 403,982,415.21/21,095.21
  6. Step 6: Final answer
    x = 19,150.44

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1.5x scale

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.