Home / 21,655.14-32,493.46-12,161.54

Finding the Fourth Proportional to 21,655.14, 32,493.46 and 12,161.54

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Solution

The fourth proportional to 21,655.14, 32,493.46 and 12,161.54 is: 18,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.14 : 32,493.46 = 12,161.54 : x
  2. Step 2: Convert to fraction form
    21,655.14/32,493.46 = 12,161.54/x
  3. Step 3: Cross multiply
    21,655.14x = 32,493.46 × 12,161.54
  4. Step 4: Simplify right side
    21,655.14x = 395,170,513.53
  5. Step 5: Solve for x
    x = 395,170,513.53/21,655.14
  6. Step 6: Final answer
    x = 18,248.35

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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.