Home / 21,812.93-32,729.12-11,422.25

Finding the Fourth Proportional to 21,812.93, 32,729.12 and 11,422.25

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Solution

The fourth proportional to 21,812.93, 32,729.12 and 11,422.25 is: 17,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.93 : 32,729.12 = 11,422.25 : x
  2. Step 2: Convert to fraction form
    21,812.93/32,729.12 = 11,422.25/x
  3. Step 3: Cross multiply
    21,812.93x = 32,729.12 × 11,422.25
  4. Step 4: Simplify right side
    21,812.93x = 373,840,190.92
  5. Step 5: Solve for x
    x = 373,840,190.92/21,812.93
  6. Step 6: Final answer
    x = 17,138.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.