Home / 21,765.85-32,648.78-10,072.69

Finding the Fourth Proportional to 21,765.85, 32,648.78 and 10,072.69

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Solution

The fourth proportional to 21,765.85, 32,648.78 and 10,072.69 is: 15,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.85 : 32,648.78 = 10,072.69 : x
  2. Step 2: Convert to fraction form
    21,765.85/32,648.78 = 10,072.69/x
  3. Step 3: Cross multiply
    21,765.85x = 32,648.78 × 10,072.69
  4. Step 4: Simplify right side
    21,765.85x = 328,861,039.82
  5. Step 5: Solve for x
    x = 328,861,039.82/21,765.85
  6. Step 6: Final answer
    x = 15,109.04

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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.