Home / 23,709.98-32,720.74-13,638.42

Finding the Fourth Proportional to 23,709.98, 32,720.74 and 13,638.42

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Solution

The fourth proportional to 23,709.98, 32,720.74 and 13,638.42 is: 18,821.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,709.98 : 32,720.74 = 13,638.42 : x
  2. Step 2: Convert to fraction form
    23,709.98/32,720.74 = 13,638.42/x
  3. Step 3: Cross multiply
    23,709.98x = 32,720.74 × 13,638.42
  4. Step 4: Simplify right side
    23,709.98x = 446,259,160.73
  5. Step 5: Solve for x
    x = 446,259,160.73/23,709.98
  6. Step 6: Final answer
    x = 18,821.57

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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.