Home / 18,327.72-25,247-15,630.16

Finding the Fourth Proportional to 18,327.72, 25,247 and 15,630.16

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Solution

The fourth proportional to 18,327.72, 25,247 and 15,630.16 is: 21,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.72 : 25,247 = 15,630.16 : x
  2. Step 2: Convert to fraction form
    18,327.72/25,247 = 15,630.16/x
  3. Step 3: Cross multiply
    18,327.72x = 25,247 × 15,630.16
  4. Step 4: Simplify right side
    18,327.72x = 394,614,649.52
  5. Step 5: Solve for x
    x = 394,614,649.52/18,327.72
  6. Step 6: Final answer
    x = 21,531.03

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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.