Home / 21,391.88-32,050.84-15,141.30

Finding the Fourth Proportional to 21,391.88, 32,050.84 and 15,141.30

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Solution

The fourth proportional to 21,391.88, 32,050.84 and 15,141.30 is: 22,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.88 : 32,050.84 = 15,141.30 : x
  2. Step 2: Convert to fraction form
    21,391.88/32,050.84 = 15,141.30/x
  3. Step 3: Cross multiply
    21,391.88x = 32,050.84 × 15,141.30
  4. Step 4: Simplify right side
    21,391.88x = 485,291,383.69
  5. Step 5: Solve for x
    x = 485,291,383.69/21,391.88
  6. Step 6: Final answer
    x = 22,685.78

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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.