Home / 21,390.25-32,057.07-15,486.88

Finding the Fourth Proportional to 21,390.25, 32,057.07 and 15,486.88

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Solution

The fourth proportional to 21,390.25, 32,057.07 and 15,486.88 is: 23,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.25 : 32,057.07 = 15,486.88 : x
  2. Step 2: Convert to fraction form
    21,390.25/32,057.07 = 15,486.88/x
  3. Step 3: Cross multiply
    21,390.25x = 32,057.07 × 15,486.88
  4. Step 4: Simplify right side
    21,390.25x = 496,463,996.24
  5. Step 5: Solve for x
    x = 496,463,996.24/21,390.25
  6. Step 6: Final answer
    x = 23,209.83

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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.