Home / 21,250.35-29,324.75-11,690.19

Finding the Fourth Proportional to 21,250.35, 29,324.75 and 11,690.19

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Solution

The fourth proportional to 21,250.35, 29,324.75 and 11,690.19 is: 16,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.35 : 29,324.75 = 11,690.19 : x
  2. Step 2: Convert to fraction form
    21,250.35/29,324.75 = 11,690.19/x
  3. Step 3: Cross multiply
    21,250.35x = 29,324.75 × 11,690.19
  4. Step 4: Simplify right side
    21,250.35x = 342,811,840.75
  5. Step 5: Solve for x
    x = 342,811,840.75/21,250.35
  6. Step 6: Final answer
    x = 16,132.06

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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.