Home / 21,266.62-29,354.60-13,713.03

Finding the Fourth Proportional to 21,266.62, 29,354.60 and 13,713.03

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Solution

The fourth proportional to 21,266.62, 29,354.60 and 13,713.03 is: 18,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.62 : 29,354.60 = 13,713.03 : x
  2. Step 2: Convert to fraction form
    21,266.62/29,354.60 = 13,713.03/x
  3. Step 3: Cross multiply
    21,266.62x = 29,354.60 × 13,713.03
  4. Step 4: Simplify right side
    21,266.62x = 402,540,544.72
  5. Step 5: Solve for x
    x = 402,540,544.72/21,266.62
  6. Step 6: Final answer
    x = 18,928.28

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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.