Home / 21,193.36-29,246.28-11,761.68

Finding the Fourth Proportional to 21,193.36, 29,246.28 and 11,761.68

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Solution

The fourth proportional to 21,193.36, 29,246.28 and 11,761.68 is: 16,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.36 : 29,246.28 = 11,761.68 : x
  2. Step 2: Convert to fraction form
    21,193.36/29,246.28 = 11,761.68/x
  3. Step 3: Cross multiply
    21,193.36x = 29,246.28 × 11,761.68
  4. Step 4: Simplify right side
    21,193.36x = 343,985,386.55
  5. Step 5: Solve for x
    x = 343,985,386.55/21,193.36
  6. Step 6: Final answer
    x = 16,230.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.