Home / 21,431.75-32,168.33-10,346.22

Finding the Fourth Proportional to 21,431.75, 32,168.33 and 10,346.22

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Solution

The fourth proportional to 21,431.75, 32,168.33 and 10,346.22 is: 15,529.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,431.75 : 32,168.33 = 10,346.22 : x
  2. Step 2: Convert to fraction form
    21,431.75/32,168.33 = 10,346.22/x
  3. Step 3: Cross multiply
    21,431.75x = 32,168.33 × 10,346.22
  4. Step 4: Simplify right side
    21,431.75x = 332,820,567.48
  5. Step 5: Solve for x
    x = 332,820,567.48/21,431.75
  6. Step 6: Final answer
    x = 15,529.33

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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.