Home / 23,712.36-32,720.94-13,638.12

Finding the Fourth Proportional to 23,712.36, 32,720.94 and 13,638.12

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Solution

The fourth proportional to 23,712.36, 32,720.94 and 13,638.12 is: 18,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,712.36 : 32,720.94 = 13,638.12 : x
  2. Step 2: Convert to fraction form
    23,712.36/32,720.94 = 13,638.12/x
  3. Step 3: Cross multiply
    23,712.36x = 32,720.94 × 13,638.12
  4. Step 4: Simplify right side
    23,712.36x = 446,252,106.23
  5. Step 5: Solve for x
    x = 446,252,106.23/23,712.36
  6. Step 6: Final answer
    x = 18,819.39

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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.