Home / 21,269.15-29,350.93-11,837.51

Finding the Fourth Proportional to 21,269.15, 29,350.93 and 11,837.51

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Solution

The fourth proportional to 21,269.15, 29,350.93 and 11,837.51 is: 16,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.15 : 29,350.93 = 11,837.51 : x
  2. Step 2: Convert to fraction form
    21,269.15/29,350.93 = 11,837.51/x
  3. Step 3: Cross multiply
    21,269.15x = 29,350.93 × 11,837.51
  4. Step 4: Simplify right side
    21,269.15x = 347,442,015.56
  5. Step 5: Solve for x
    x = 347,442,015.56/21,269.15
  6. Step 6: Final answer
    x = 16,335.49

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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.