Home / 16,170.81-22,327.90-15,912.48

Finding the Fourth Proportional to 16,170.81, 22,327.90 and 15,912.48

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Solution

The fourth proportional to 16,170.81, 22,327.90 and 15,912.48 is: 21,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,170.81 : 22,327.90 = 15,912.48 : x
  2. Step 2: Convert to fraction form
    16,170.81/22,327.90 = 15,912.48/x
  3. Step 3: Cross multiply
    16,170.81x = 22,327.90 × 15,912.48
  4. Step 4: Simplify right side
    16,170.81x = 355,292,207.26
  5. Step 5: Solve for x
    x = 355,292,207.26/16,170.81
  6. Step 6: Final answer
    x = 21,971.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.