Home / 21,269.34-29,351.19-11,837.70

Finding the Fourth Proportional to 21,269.34, 29,351.19 and 11,837.70

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Solution

The fourth proportional to 21,269.34, 29,351.19 and 11,837.70 is: 16,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.34 : 29,351.19 = 11,837.70 : x
  2. Step 2: Convert to fraction form
    21,269.34/29,351.19 = 11,837.70/x
  3. Step 3: Cross multiply
    21,269.34x = 29,351.19 × 11,837.70
  4. Step 4: Simplify right side
    21,269.34x = 347,450,581.86
  5. Step 5: Solve for x
    x = 347,450,581.86/21,269.34
  6. Step 6: Final answer
    x = 16,335.75

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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.