Home / 21,461.09-32,155.99-15,190.07

Finding the Fourth Proportional to 21,461.09, 32,155.99 and 15,190.07

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Solution

The fourth proportional to 21,461.09, 32,155.99 and 15,190.07 is: 22,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.09 : 32,155.99 = 15,190.07 : x
  2. Step 2: Convert to fraction form
    21,461.09/32,155.99 = 15,190.07/x
  3. Step 3: Cross multiply
    21,461.09x = 32,155.99 × 15,190.07
  4. Step 4: Simplify right side
    21,461.09x = 488,451,540.26
  5. Step 5: Solve for x
    x = 488,451,540.26/21,461.09
  6. Step 6: Final answer
    x = 22,759.87

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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.