Home / 21,268.50-29,350.53-11,837.07

Finding the Fourth Proportional to 21,268.50, 29,350.53 and 11,837.07

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Solution

The fourth proportional to 21,268.50, 29,350.53 and 11,837.07 is: 16,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.50 : 29,350.53 = 11,837.07 : x
  2. Step 2: Convert to fraction form
    21,268.50/29,350.53 = 11,837.07/x
  3. Step 3: Cross multiply
    21,268.50x = 29,350.53 × 11,837.07
  4. Step 4: Simplify right side
    21,268.50x = 347,424,278.15
  5. Step 5: Solve for x
    x = 347,424,278.15/21,268.50
  6. Step 6: Final answer
    x = 16,335.16

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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.